Antenna Measurement Satimo Englisch
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Transcript of Antenna Measurement Satimo Englisch
Antenna Measurement SystemsMulti-probe systems
© SATIMO 2008
SATIMO has developed a range of antenna measurement systems changing the approach to antenna measurements. Its patented multi-probe technology offers new perspectives that combine the advantages of fast measurements with geometries allowing minimal mechanical movements.
The speed factor enables more frequent testing of devices under development, thus allowing more interactions between simulation and prototyping. Indeed, the quasi-real time visualization of the radiation pattern of the antenna under test enables engineers to immediately adapt accordingly the prototype design. The integration of continuous measurements into the antenna design process improves the overall effi ciency of the development work. High quality products and adaptive measurement systems will be the future of the antenna industry. All measurement systems have been developed by SATIMO based on its two main product lines, StarLab and SG systems. These systems are aimed at optimi-zing the design, validation, certifi cation and produc-tion stages of all types of antennas. Our systems are able to characterize the performances of:
• Stand alone antennas (antenna measurements).• Antenna mounted on structure i.e. automotive/
aerospace and defense (antenna performance within a complex structure).
• Antennas integrated in mobile telecommunication devices (Over the Air measurements).
More than rapidity: SATIMO brings your antenna research and development team into the future
>
Optimize antenna design through prototype measurements
1
> Example of the development of ARGOS positioning antenna
> Fast fi rst order simulation
> Prototype tuning through measurements
> Measurement time ~ 2 min
STEP 2: Fast measurement tuning
STEP 1: Fast fi rst order simulation
2
Electronically scanned probe array:
high speed combined with accuracy
The electronic scanning of probe arrays and the geometries used in SATIMO equipments are major improvements in the fi eld of antenna measurements.
1/ High measurement speed
The array of probes is electronically scanned, which means that a full cut can be measured and visualized in real time. Full 3D measurements are performed in a few minutes.
2/ Limited mechanical movements
SATIMO systems use geometries that minimize the number of necessary mechanical movements. In most classical spherical single-probe measurement systems, the DUT is rotated in azimuth from 0 to 360° and elevation from 0 to 180° in front of a single probe to determine the fi eld on a sphere surrounding the device. SATIMO spherical multi-probe systems limit mecha-nical movements to the 180° rotation of the DUT.
Minimizing mechanical movements enables:
• Improved accuracy of the measurement: movements are a source of disturbance.
• Increased repeatability of the measurement: increa-sed repeatability reduces the risk of error.
• Extended lifetime of the system: repeated move-ments may affect the reliability of mechanical parts.
Select the geometry to best suit
your application
For each kind of antenna and application there is a corresponding best test geometry. In addition, SATIMO proposes movable in-situ advanced measurement solutions.
1/ Geometries
An array of probes can be integrated in different systems’ architecture in order to best fi t a specifi c need:
• Spherical geometry: can be used to test any kind of antenna and is necessary to test wide-beam and omni-directional antennas: i.e. wireless devices testing, OTA systems...
• Cylindrical geometry: for semi-directive antennas i.e. BTS antennas.
• Planar geometry: for highly directive antennas: i.e. phased arrays, satellite communication antennas....
Traditional single probe spherical confi guration
SATIMO’s multi-probe spherical confi guration
3
2/ Movable/Advanced Systems
Nowadays, demand for testing antennas integrated in complex structures is increasing; structures that might be diffi cult to bring into anechoic chambers or that might have antennas in positions that are diffi cult to reach. SATIMO designs and manufactures measure-ment systems that can be moved to the devices under test (indoors and outdoors); systems which also use smart, mechanical movement to bring the probe array to the antenna. Some examples can be found in the automotive and aerospace sections of this catalogue.
a large number of applications
SATIMO systems are open to the evolution of your measurement needs.
1/ Wide frequency band
3 families of probes combined with several sizes of supporting structures are available for measurements covering the 70 MHz to 18 GHz frequency range.Probes to reach 40 GHz are under development. Meanwhile 40 GHz systems can be delivered using a combination of single probe and SATIMO’s multi-probe technique.
2/ Amplitude and Phase measurements
SATIMO equipments are able to measure the phase and amplitude of the radiation pattern. This is particu-larly important for advanced post-processing:
• Calculate near and far fi eld measurement data.• Calculate back propagation/holography.• Use modal fi ltering to eliminate unwanted effects.• Standard antenna post-processing (directivity, effi ciency, 3D beamwidth...).
3/ OTA performance testing
SATIMO systems are particularly suited to perform Over The Air (OTA) Testing. The multi-probe approach drastically reduces the TRP (Total Radiated Power) measurement time, while the TIS (Total Isotropic Sensitivity) benefi ts from the latest processing improvements. Please see the Over The Air Testing section, page 39 for more information.
4/ Wearable antennas measurements
Using probe arrays allows interaction assessment between antennas and their environement. Hen-ce, with SATIMO measurement systems, wearable antennas can be measured while actually being worn. Those measurements complete simulation and phantom usage, and bring one step further the knowledge of the performances of those antennas in the fi eld.
> 0.07 to 0.40 GHz probe
> 0.4 to 6.0 GHz probe
> 6 to 18 GHz probe
4
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> SATIMO’s customer satisfaction program
Offering reliable products and services to its customers.
➊ Quality Management System SATIMO was certifi ed ISO 9001:
2000 in 2005. This certifi cate ensures that:
• Our products meet customer and applicable regu-
latory requirements.• Our processes aim at continuous improvement
of customer satisfaction and conformity of our products to requirements.
➋ Customer support serviceOur customer support program includes before and after sales service.• A technical support engineer is dedicated to each
product or geographic area to ensure that the pro-duct will be compliant to customer’s requirements.
• A maintenance and support team guarantees that customers get quick and effi cient support, from the installation stage onwards.
➌ Certifi cation compliance (OTA testing)SATIMO systems are particularly suited to testing wireless devices in active mode. It is our company strategy to follow the evolution of the different tele-communication protocols and to be present in the standardization committees to actively contribute to the test plan drafting.
Even complex electromagnetic scenarios can be measured as SATIMO systems can use several probes emitting or receiving at the same time (i.e. testing MIMO devices).
Standardization committees worldwide: SATIMO’s commitment
• CTIA (International Association for the Wireless Telecommunication Industry)
SATIMO is a member of the CTIA working groups, focusing on the Over the Air measurement protocols
for the CDMA, GSM, UMTS, TDMA and analogue protocols.
Both SG 24 and 64 are fully compliant with the CTIA certifi cation program.
Several SATIMO customers, including test labora-tories, mobile manufacturers and antenna design houses have CTIA accredited systems, using SATIMO equipment.
SATIMO’s own CTIA authorized test and calibration lab in Kennesaw, GA (USA) also offers measurement calibration and services.
6
• COST 2100 (European Cooperation in the fi eld of Scientifi c and Technical research)
SATIMO has been part of the Cost 273 over the years and
is now part of the new COST 2100 working group that is in charge of developing European standards for the testing of wireless devices.
• 3GPP (3rd Generation Partnership Project) SATIMO is part of the 3GPP working
group, the scope of which is to produce technical specifi cations and technical
reports for a 3rd generation mobile system. The 3 GPP covers all GSM (including GPRS and EDGE) and W-CDMA specifi cations (UMTS).
• Wi-Fi Alliance SATIMO is part of the Wi-Fi alliance
which brings together key industry players to develop worldwide-accep-ted standard for high-speed wireless local area networking.
• WiMAX Forum SATIMO is member of the WIMAX forum,
the goal of which is to certify and promote the compatibility and interoperability of
broadband wireless products based upon the harmonized IEEE 802.16/ETSI HiperMAN standard.
Sta
rLab
StarLab>
9StarLab
StarLab: a compact movable solution
when space and budget are at stake
StarLab is the ultimate tool for antenna pattern measurements in laboratories and production environment, where space is limited, cost is critical and the fl exibility of a movable system is required.
StarLab
StarLab is mounted on wheels and can go through a standard double door. If needed, one of the two cylinders of absorbers can be removed, allowing it to pass through a standard single door.
StarLab uses a Switching Unit to switch between passive and active measurements RF instrumenta-tion. For passive measurements, a Vector Network Analyzer is used as the RF source/receiver for an-tenna measurements. The Control Unit drives the two positioning motors and the electronic scanning of the
probe array. For active measurements the test is per-fomed through a Multi Protocol Radio Communication Tester. Amplifi cation Units are added on both TX and RX chains. For Wi-Fi and other protocols that use de-dicated Radio Communication Testers the Switching Unit has dedicated ports.
10 StarLab
1/ Main features
StarLab can perform the following measurements:• Gain, directivity, 3D radiation pattern, beamwidth,
cross polar discrimination, sidelobes levels.• Radiation pattern in any polarization, linear or circular, as well as antenna effi ciency.
StarLab 18 GHz versionFor the 0.8 GHz to 18 GHz version two probe arrays are interleaved, one with 0.8-6 GHz probes and one with 6-18 GHz probes. StarLab 18 GHz has the same capabilities as the standard 6 GHz version.
Measurement specifi cations*
STARLAB 6 GHz STARLAB 18 GHz
Measurement time for 11 frequencies** ~ 1 min ~ 1 min
Typical dynamic range 50 dB 50 dB
10 dBi AUT 20 dBi AUT 30 dBi AUT 10 dBi AUT 20 dBi AUT 30 dBi AUT
PEAK GAIN ACCURACY
0.8 GHz - 1 GHz ± 1.1 dB - - ± 1.1 dB - -
1 GHz - 6 GHz ± 0.8 dB ± 0.7 dB - ± 0.8 dB ± 0.7 dB -
6 GHz - 18 GHz - - - ± 0.9 dB ± 0.7 dB ± 0.6 dB
Peak gain repeatability ± 0.3 dB ± 0.3 dB ± 0.3 dB ± 0.3 dB ± 0.3 dB ± 0.3 dB
- 10 dB SIDELOBES ACCURACY
0.8 GHz - 1 GHz ± 1.1 dB - - ± 1.1 dB - -
1 GHz - 6 GHz ± 0.9 dB ± 0.6 dB - ± 0.9 dB ± 0.6 dB -
6 GHz - 16 GHz - - - ± 0.8 dB ± 0.5 dB ± 0.4 dB
16 GHz - 18 GHz - - - ± 1.0 dB ± 0.6 dB ± 0.4 dB
- 20 dB SIDELOBES ACCURACY
0.8 GHz - 1 GHz ± 3.5 dB - - ± 3.5 dB - -
1 GHz - 6 GHz ± 2.7 dB ± 0.9 dB - ± 2.7 dB ± 0.9 dB -
6 GHz - 16 GHz - - - ± 2.4 dB ± 0.8 dB ± 0.5 dB
16 GHz - 18 GHz - - - ± 3.2 dB ± 1.0 dB ± 0.6 dB
- 30 dB SIDELOBES ACCURACY
0.8 GHz - 1 GHz - - - - - -
1 GHz - 6 GHz - ± 2.7 dB - - ± 2.7 dB -
6 GHz - 16 GHz - - - - ± 2.4 dB ± 0.8 dB
16 GHz - 18 GHz - - - - ± 3.2 dB ± 1.0 dB
* Specifi cations given according the following assumptions:
• Controlled temperature and humidity during measurement
• Specifi cations on radiation pattern are given for a normalized pattern
• Measurements inside an anechoic chamber or equivalent conditions, except for StarLab BTS measurements
• Usage of an Agilent PNA with 1kHz IF BW
• Peak gain are given for a ± 0.3 dB of gain error on the reference antenna
• DUT phase center does not exceed 15 cm from arch center
** No oversampling, no averaging
11StarLab
Oversampling capabilityA combination of automated mechanical and electro-nically scanned probe array is available to provide un-limited scan resolution in both elevation and azimuth.
The spacing between two probes is 22.5°. This spa-cing is suitable for small antenna testing. For larger an-tennas, the position of the probe array can be mecha-nically offset. This “fi lls in the gaps” between the probes and provides the possibility of unlimited sampling.
StarLab: oversampling function
Mechanical characteristics*
External dimensions 1.82 x 1.08 x 1.98 mof StarLab (L x W x H)
Probe array internal diameter 0.9 m
Optional chamber size 1.92 x 1.97 x 2.08 m
Angle between probesin the same frequency band 22.5°
Azimuth accuracy 0.02°
Azimuth max. speed 50°/s
Elevation accuracy 0.01°
DUT MAX. WEIGHT
Styrofoam mast 10 kg
Ultra rigid mast Custom
RF EQUIPMENT CHARACTERISTICS
Number of probes
StarLab 6 GHz 15 + 1 reference channel
StarLab 18 GHz 0.8 to 6 GHz 15 + 1 reference channel 6 to 18 GHz 14 + 1 reference channel
Frequency range
StarLab 6 GHz 0.8 GHz to 6 GHz
StarLab 18 GHz 0.8 GHz to 18 GHz
* Centered load without oversampling
Maximum diameter of the DUT (m)
FREQUENCY NUMBER OF OVERSAMPLING (GHz) x 1 x 2 x 3 x 5 x 10
0.8 0.45 0.45 0.45 0.45 0.45
1 0.45 0.45 0.45 0.45 0.45
2 0.38 0.45 0.45 0.45 0.45
3 0.25 0.45 0.45 0.45 0.45
4 0.19 0.38 0.45 0.45 0.45
5 0.15 0.31 0.45 0.45 0.45
6 0.13 0.25 0.38 0.45 0.45
7 0.11 0.22 0.33 0.45 0.45
8 0.10 0.19 0.29 0.45 0.45
9 0.08 0.17 0.25 0.42 0.45
10 0.08 0.15 0.23 0.38 0.45
11 0.07 0.14 0.21 0.35 0.45
12 0.06 0.13 0.19 0.32 0.45
13 0.06 0.12 0.18 0.29 0.45
14 0.05 0.11 0.16 0.27 0.45
15 0.05 0.10 0.15 0.25 0.45
16 0.05 0.10 0.14 0.24 0.45
17 0.04 0.09 0.13 0.22 0.45
18 0.04 0.08 0.13 0.21 0.42
12 StarLab
2/ OTA performance testing with StarLab
StarLab can perform both TRP and TIS measure-ments. For TIS measurements, or where external in-terference is a problem, a shielded chamber is neces-sary. A small shielded chamber for StarLab is available. The chamber is lined with pyramid absorbers on the two walls facing the openings of the StarLab anechoic cylinders.
3/ Linear scanner option (BTS antenna mesurement)
By adding a linear scanner, StarLab is converted from a spherical to a cylindrical near fi eld measurement system, which is particularly suitable to BTS antenna measurements. In addition to the standard features, this confi guration allows the measurements of the beam tilt. StarLab BTS can measure sidelobes up to typically 70° from boresight.
Intercomparaison between measurements performed with SG64 and StarLab BTS
Base station antenna measurement characteristics
Geometry Cylindrical
Standard rail length 6 meters
BTS max. weight 80 kg
Compact shielded chamber for OTA performance measurements
OTA performance measurement specifi cations*
ACCORDING TO CTIA SPECIFICATIONS
TRP accuracy free space <± 1.9 dB
TRP accuracy talk position <± 2.0 dB
TRP repeatability ± 0.3 dB
Typical TRP measurement time** < 2 min
TIS accuracy free space <± 2.0 dB
TIS accuracy talk position <± 2.1 dB
TIS repeatability ± 0.5 dB
Typical TIS measurement time*** 15 min > 60 min
CTIA COMPARABLE
TIS based on Rx Level accuracy <± 2.8 dB
TIS based on Rx Level repeatabilty <± 1.5 dB
Typical TIS based on < 6 min Rx level mesurement time***
* Specifi cations given according the following assumptions:
• Controlled temperature and humidity during measurement
• Measurements inside an anechoic chamber
• DUT phase center does not exceed 15 cm from arch center
• Calibration done with dipole effi ciency reference values
Specifi cations also depend on Radio Communication Tester and Protocol
** One channel, 15 deg sampling, one time each probe
*** One channel, 30 deg sampling, one time each probe, measurement time
depends on protocol
StarLab with BTS option
SG
sta
ndar
d sy
stem
s
SG standard systems
>
14 SG standard systems
15SG standard systems
SG
64SG 64 >
17SG standard systems
The most accurate solution to test antennas and wireless devices
SG 64 has been developed to measure stand alone antennas or antennas integrated in subsystem (see specifi cation table on the following page). It is also ideal for CTIA certifi able measurement facilities.
SG system can switch between the Probe Array Controler (PAC) for passive measurements and the Radio Communication Tester for active measure-ments. For passive measurements it uses Analog RF Signal Generators for emitting from the probe array to the Antenna Under Test or from the Antenna Under Test to the probe array. The PAC is also a RF receiver for antenna measurements. The PAC controls as well
the electronic scanning of the probe array. The Am-plifi cation Unit has RF amplifi ers for both RX and TX channels. For active measurements, the test is perfor-med thanks to a Multi-protocol Radio Communication Tester. It is used to communicate with the DUT and to measure the Total Radiated Power (TRP) and Total Isotropic Sensitivity (TIS).
18 SG standard systems
1/ Main features
SG 64 can perform the following measurements:• Gain, directivity, 3D radiation pattern, beamwidth,
cross polar discrimination, sidelobes levels and front to back ratio.
• Radiation pattern in any polarization, linear or circular, as well as antenna effi ciency.
SG 64 - 18 GHz versionFor the 0.4 GHz to 18 GHz version two probe ar-rays are interleaved, one with 0.4-6 GHz probes and
Measurement specifi cations*
COMPACT STANDARD 6 GHz STANDARD 18 GHz LARGE 6 GHz
Typical Max. size DUT 134 cm 179 cm 179 cm 273 cm
Measurement time for 11 frequencies** < 3 min < 3 min < 3 min < 3 min
Typical dynamic range 70 dB 70 dB 70 dB 70 dB
10 dBi 20 dBi 30 dBi 10 dBi 20 dBi 30 dBi 10 dBi 20 dBi 30 dBi 10 dBi 20 dBi 30 dBi AUT AUT AUT AUT AUT AUT AUT AUT AUT AUT AUT AUT
PEAK GAIN ACCURACY
0.4 GHz - 0.8 GHz ± 1.1 dB ± 1.0 dB - ± 0.9 dB ± 0.8 dB - ± 0.9 dB ± 0.8 dB - ± 0.8 dB ± 0.7 dB ± 0.7 dB
0.8 GHz - 1 GHz ± 0.6 dB ± 0.6 dB - ± 0.5 dB ± 0.5 dB ± 0.5 dB ± 0.5 dB ± 0.5 dB ± 0.5 dB ± 0.5 dB ± 0.5 dB ± 0.5 dB
1 GHz - 6 GHz ± 0.6 dB ± 0.6 dB ± 0.5 dB ± 0.5 dB ± 0.5 dB ± 0.5 dB ± 0.5 dB ± 0.5 dB ± 0.5 dB ± 0.5 dB ± 0.5 dB ± 0.5 dB
6 GHz - 18 GHz - - - - - - ± 0.7 dB ± 0.6 dB ± 0.5 dB - - -
Peak gain repeatability ± 0.3 dB ± 0.3 dB ± 0.3 dB ± 0.3 dB ± 0.3 dB ± 0.3 dB ± 0.3 dB ± 0.3 dB ± 0.3 dB ± 0.3 dB ± 0.3 dB ± 0.3 dB
- 10 dB SIDELOBES ACCURACY
0.4 GHz - 0.8 GHz ± 1.1 dB ± 0.7 dB - ± 1.0 dB ± 0.6 dB - ± 1.0 dB ± 0.6 dB - ± 0.9 dB ± 0.6 dB ± 0.4 dB
0.8 GHz - 1 GHz ± 0.9 dB ± 0.6 dB - ± 0.8 dB ± 0.5 dB ± 0.4 dB ± 0.8 dB ± 0.5 dB ± 0.4 dB ± 0.7 dB ± 0.5 dB ± 0.4 dB
1 GHz - 6 GHz ± 0.7 dB ± 0.5 dB ± 0.4 dB ± 0.7 dB ± 0.5 dB ± 0.4 dB ± 0.7 dB ± 0.5 dB ± 0.4 dB ± 0.7 dB ± 0.5 dB ± 0.4 dB
6 GHz - 16 GHz - - - - - - ± 0.7 dB ± 0.5 dB ± 0.4 dB - - -
16 GHz - 18 GHz - - - - - - ± 0.7 dB ± 0.5 dB ± 0.4 dB - - -
- 20 dB SIDELOBES ACCURACY
0.4 GHz - 0.8 GHz ± 3.5 dB ± 1.1 dB - ± 3.2 dB ± 1.0 dB - ± 3.2 dB ± 1.0 dB - ± 3.0 dB ± 0.9 dB ± 0.6 dB
0.8 GHz - 1 GHz ± 2.7 dB ± 0.9 dB - ± 2.4 dB ± 0.8 dB ± 0.5 dB ± 2.4 dB ± 0.8 dB ± 0.5 dB ± 2.2 dB ± 0.7 dB ± 0.5 dB
1 GHz - 6 GHz ± 2.1 dB ± 0.7 dB ± 0.5 dB ± 2.1 dB ± 0.7 dB ± 0.5 dB ± 2.1 dB ± 0.7 dB ± 0.5 dB ± 2.1 dB ± 0.7 dB ± 0.5 dB
6 GHz - 16 GHz - - - - - - ± 2.1 dB ± 0.7 dB ± 0.5 dB - - -
16 GHz - 18 GHz - - - - - - ± 2.1 dB ± 0.7 dB ± 0.5 dB - - -
- 30 dB SIDELOBES ACCURACY
0.4 GHz - 0.8 GHz - ± 3.5 dB - - ± 3.2 dB - - ± 3.2 dB - - ± 3.0 dB ± 0.9 dB
0.8 GHz - 1 GHz - ± 2.7 dB - - ± 2.4 dB ± 0.8 dB - ± 2.4 dB ± 0.8 dB - ± 2.2 dB ± 0.7 dB
1 GHz - 6 GHz - ± 2.1 dB ± 0.7 dB - ± 2.1 dB ± 0.7 dB - ± 2.1 dB ± 0.7 dB - ± 2.1 dB ± 0.7 dB
6 GHz - 16 GHz - - - - - - - ± 2.1 dB ± 0.7 dB - - -
16 GHz - 18 GHz - - - - - - - ± 2.1 dB ± 0.7 dB - - -
* Specifi cations given according the following assumptions: • Controlled temperature and humidity during measurement • Specifi cations on radiation pattern are given for a normalized pattern • Measurements inside an anechoic chamber • Peak gain are given for a ± 0.3 dB of gain error on the reference antenna
• DUT phase center does not exceed 15 cm from arch center
** No oversampling, no averaging
one with 6-18 GHz probes. SG 64 - 18 has the same capabilities as the standard 6 GHz version.
SG low frequency version (LF)For the SG LF version, the arch is divided in two probe arrays. On one side, an array with 0.07-0.4 GHz pro-bes and on the other side, an array with 0.4-6 GHz probes. The SG LF has the same capabilities as the 6 GHz standard version. Specifi cations are provided upon request.
19SG standard systems
SG system: oversampling functionSG LF version with two kinds of probes
Oversampling capabilityA combination of automated mechanical and electronically scanned probe array is available to provide un-limi-ted scan resolution in both elevation and azimuth.
The spacing between two probes is 5.29º. This spacing is suitable for small antenna testing. For larger antennas, an additional mechanical rotation is combined to the probe array. In this case, the positioning mast rotates with ±2.6° in elevation, in order to adjust the position of the DUT on offset locations. This “fi lls in the gaps” and provides the possibility of unlimited sampling.
Mechanical characteristics*
COMPACT STANDARD STANDARD LARGE SG LF 6 GHz 6 GHz 18 GHz
Probe array diameter (int/ext) 2.4/ 3.52 m 3.2/4.194 m 3.2/4.194 m 4.2/5.194 m Custom
Chamber size 4.0 x 4.0 x 4.0 m 5.0 x 5.0 x 5.0 m 5.0 x 5.0 x 5.0 m 6.0 x 6.0 x 6.0 m Custom
Angle between probesin the same frequency band 5,29° 5,29° 5,29° 5,29° Custom
Azimuth accuracy 0.02° 0.02° 0.02° 0.02° 0.02°
Azimuth max. speed 30°/s 30°/s 30°/s 30°/s 30°/s
Oversampling capability Yes Yes Yes Yes Yes
AUT Max. weight 200 kg 200 kg 200 kg 200 kg 200 kg
DUT MAX. WEIGHT
Styrofoam mast 50 kg 50 kg 50 kg 50 kg 50 kg
Ultra rigid mast 200 kg 200 kg 200 kg 200 kg 200 kg
PVC chair 100 kg 100 kg 100 kg 100 kg 100 kg
BTS pole mast Non Option Option Option Option
RF EQUIPMENT CHARACTERISTICS
Number of probes 63 + 1 ref. channel 63 + 1 ref. channel 63 + 1 ref. channel 63 + 1 ref. channel Custom and 62 + 1 (18 GHz)
Frequency range 0.4 GHz to 6 GHz 0.4 GHz to 6 GHz 0.4 GHz to 18 GHz 0.4 GHz to 6 GHz 0.07 GHz to 0.45 GHz
* Centered load without oversampling
20 SG standard systems
Maximum diameter of the DUT* (m)
FREQUENCY NUMBER OF OVERSAMPLING (GHz) x 1 x 2 x 3 x 5 x 10
0.4 1.60 1.60 1.60 1.60 1.60
1 1.79 1.79 1.79 1.79 1.79
2 1.62 1.79 1.79 1.79 1.79
3 1.08 1.79 1.79 1.79 1.79
4 0.81 1.62 1.79 1.79 1.79
5 0.65 1.30 1.79 1.79 1.79
6 0.54 1.08 1.62 1.79 1.79
7 0.46 0.93 1.39 1.79 1.79
8 0.41 0.81 1.22 1.79 1.79
9 0.36 0.72 1.08 1.79 1.79
10 0.32 0.65 0.97 1.62 1.79
11 0.30 0.59 0.89 1.48 1.79
12 0.27 0.54 0.81 1.35 1.79
13 0.25 0.50 0.75 1.25 1.79
14 0.23 0.46 0.70 1.16 1.79
15 0.22 0.43 0.65 1.08 1.79
16 0.20 0.41 0.61 1.01 1.79
17 0.19 0.38 0.57 0.95 1.79
18 0.18 0.36 0.54 0.90 1.79
* For standard model
2/ OTA performance testing with SG 64
SG 64 can perform both TRP and TIS measurements according to CTIA specifi cations.
OTA performance measurement specifi cations*
ACCORDING TO CTIA SPECIFICATIONS
TRP accuracy free space <± 1.4 dB
TRP accuracy talk position <± 1.5 dB
TRP repeatability ± 0.3 dB
Typical TRP measurement time** < 90 s
TIS accuracy free space <± 1.5 dB
TIS accuracy talk position <± 1.6 dB
TIS repeatability ± 0.5 dB
Typical TIS measurement time*** 15 min > 60 min
CTIA COMPARABLE
TIS based on Rx Level accuracy <± 2.2 dB
TIS based on Rx Level repeatabilty <± 1.5 dB
Typical TIS based on < 5 min Rx level mesurement time***
* Specifi cations for standard model given according the following assumptions:
• Controlled temperature and humidity during measurement
• Measurements inside an anechoic chamber
• DUT phase center does not exceed 15 cm from arch center
• Calibration done with dipole effi ciency reference values
Specifi cations also depend on Radio Communication Tester and Protocol
** One channel, 15 deg sampling, one time each probe
*** One channel, 30 deg sampling, one time each probe, measurement time
depends on protocol
Base station antenna measurement characteristics
COMPACT STANDARD 6 GHZ STANDARD 18 GHZ LARGE 6 GHZ
BTS antenna Not available Yes Yes Yesmeasurement capability
Geometry - Spherical Spherical Spherical
BTS Max Length/Weight - 179 cm/200 kg 179 cm/200kg 273 cm/200kg
Measurement Time - < 3 min < 3 min < 3 min for 11 frequency*
* 1 port (no oversampling, no averaging), BTS antenna of 160 cm @ GSM900
3/ BTS antenna mesurement with SG 64
SG
32
SG 32 >
23SG standard systems
Its compact dimensions make it perfect for offi ce buildings and labs
where ceiling height is limited
SG 32 is a downscale version of the SG 64 with 31 probes (+ 1 reference channel).
SG system can switch between the Probe Array Controler (PAC) for passive measurements and the Radio Communication Tester for active measure-ments. For passive measurements it uses Analog RF Signal Generators for emitting from the probe array to the Antenna Under Test or from the Antenna Under Test to the probe array. The PAC is also a RF receiver for antenna measurements. The PAC controls as well
the electronic scanning of the probe array. The Am-plifi cation Unit has RF amplifi ers for both RX and TX channels. For active measurements, the test is perfor-med thanks to a Multi-protocol Radio Communication Tester. It is used to communicate with the DUT and to measure the Total Radiated Power (TRP) and Total Isotropic Sensitivity (TIS).
24 SG standard systems
1/ Main features
SG 32 can perform the following measurements:• Gain, directivity, 3D radiation pattern, beamwidth,
cross polar discrimination, sidelobes levels.• Radiation pattern in any polarization, linear or circular, as well as antenna effi ciency.
SG 32 - 18 GHz versionFor the 0.8 GHz to 18 GHz version, two probes arrays are interleaved, one with 0.8-6 GHz probes and one with 6-18 GHz probes. SG 32 - 18 GHz has the same capabilities as the standard 6 GHz version.
Measurement specifi cations*
SG 32 - 6 GHz SG 32 - 18 GHz
Measurement time for 11 frequencies** < 2 min < 2 min
Typical dynamic range 70 dB 70 dB
10 dBi AUT 20 dBi AUT 30 dBi AUT 10 dBi AUT 20 dBi AUT 30 dBi AUT
PEAK GAIN ACCURACY
0.8 GHz - 1 GHz ± 0.9 dB ± 0.7 dB - ± 0.9 dB ± 0.7 dB -
1 GHz - 6 GHz ± 0.8 dB ± 0.7 dB ± 0.6 dB ± 0.8 dB ± 0.7 dB ± 0.6 dB
6 GHz - 18 GHz - - - ± 0.8 dB ± 0.7 dB ± 0.6 dB
Peak gain repeatability ± 0.3 dB ± 0.3 dB ± 0.3 dB ± 0.3 dB ± 0.3 dB ± 0.3 dB
- 10 dB SIDELOBES ACCURACY
0.8 GHz - 1 GHz ± 1.0 dB ± 0.6 dB - ± 1.0 dB ± 0.6 dB -
1 GHz - 6 GHz ± 0.8 dB ± 0.5 dB ± 0.4 dB ± 0.8 dB ± 0.5 dB ± 0.4 dB
6 GHz - 16 GHz - - - ± 0.7 dB ± 0.5 dB ± 0.4 dB
16 GHz - 18 GHz - - - ± 0.7 dB ± 0.5 dB ± 0.4 dB
- 20 dB SIDELOBES ACCURACY
0.8 GHz - 1 GHz ± 3.0 dB ± 1.0 dB - ± 3.0 dB ± 1.0 dB -
1 GHz - 6 GHz ± 2.4 dB ± 0.8 dB ± 0.5 dB ± 2.4 dB ± 0.8 dB ± 0.5 dB
6 GHz - 16 GHz - - - ± 2.2 dB ± 0.7 dB ± 0.5 dB
16 GHz - 18 GHz - - - ± 2.2 dB ± 0.7 dB ± 0.5 dB
- 30 dB SIDELOBES ACCURACY
0.8 GHz - 1 GHz - ± 3.0 dB - - ± 3.0 dB -
1 GHz - 6 GHz - ± 2.4 dB ± 0.8 dB - ± 2.4 dB ± 0.8 dB
6 GHz - 16 GHz - - - - ± 2.2 dB ± 0.7 dB
16 GHz - 18 GHz - - - - ± 2.2 dB ± 0.7 dB
* Specifi cations given according the following assumptions:
• Controlled temperature and humidity during measurement
• Specifi cations on radiation pattern are given for a normalized pattern
• Measurements inside an anechoic chamber
• Peak gain are given for a ± 0.3 dB of gain error on the reference antenna
• DUT phase center does not exceed 15 cm from arch center
** No oversampling, no averaging
25SG standard systems
Oversampling capabilityA combination of automated mechanical and elec-tronically scanned probe array is available to provide unlimited scan resolution in both elevation and azimuth.
The spacing between two probes is 10.59º. This spacing is suitable for small antenna testing. For larger antennas, an additional mechanical rotation is combined to the probe array. In this case, the posi-tioning mast rotates with ±5.3° in elevation, in order to adjust the position of the DUT on offset locations. This “fi lls in the gaps” and provides the possibility of unlimited sampling.
SG system: oversampling function
Mechanical characteristics*
SG 32 - 6 GHz SG 32 - 18 GHz
Probe array diameter (int/ext) 1.5 / 2.5 m 1.5 / 2.5 m
Chamber size 3.5 x 3.5 x 2.7 m 3.5 x 3.5 x 2.7 m
Angle between probes in the same frequency band 10,59° 10,59°
Azimuth accuracy 0.02° 0.02°
Azimuth max. speed 30°/s 30°/s
Oversampling capability Yes Yes
AUT Max. weight 200 kg 200 kg
DUT MAX. WEIGHT
Styrofoam mast 50 kg 50 kg
Ultra rigid mast 200 kg 200 kg
PVC chair Not available Not available
BTS pole mast Not available Not available
RF EQUIPMENT CHARACTERISTICS
Number of probes 31 + 1 ref. channel 31 + 1 ref. channel (6 GHz) and 30 + 1 ref. channel (18 GHz)
Frequency range 0.8 GHz to 6 GHz 0.8 GHz to 18 GHz
* Centered load without oversampling
26 SG standard systems
Maximum diameter of the DUT (m)
FREQUENCY NUMBER OF OVERSAMPLING (GHz) x 1 x 2 x 3 x 5 x 10
0.8 0.75 0.75 0.75 0.75 0.75
1 0.75 0.75 0.75 0.75 0.75
2 0.81 0.84 0.84 0.84 0.84
3 0.54 0.84 0.84 0.84 0.84
4 0.41 0.81 0.84 0.84 0.84
5 0.32 0.65 0.84 0.84 0.84
6 0.27 0.54 0.81 0.84 0.84
7 0.23 0.46 0.70 0.84 0.84
8 0.20 0.41 0.61 0.84 0.84
9 0.18 0.36 0.54 0.84 0.84
10 0.16 0.32 0.49 0.81 0.84
11 0.15 0.30 0.44 0.74 0.84
12 0.14 0.27 0.41 0.68 0.84
13 0.12 0.25 0.37 0.62 0.84
14 0.12 0.23 0.35 0.58 0.84
15 0.11 0.22 0.32 0.54 0.84
16 0.10 0.20 0.30 0.51 0.84
17 0.10 0.19 0.29 0.48 0.84
18 0.09 0.18 0.27 0.45 0.84
OTA performance measurement specifi cations*
ACCORDING TO CTIA SPECIFICATIONS
TRP accuracy free space <± 1.6 dB
TRP accuracy talk position <± 1.7 dB
TRP repeatability ± 0.3 dB
Typical TRP measurement time** < 1 min
TIS accuracy free space <± 1.7 dB
TIS accuracy talk position <± 1.8 dB
TIS repeatability ± 0.5 dB
Typical TIS measurement time*** 15 min > 60 min
CTIA COMPARABLE
TIS based on Rx Level accuracy <± 2.6 dB
TIS based on Rx Level repeatabilty <± 1.5 dB
Typical TIS based on < 5 min Rx level mesurement time***
* Specifi cations given according the following assumptions:
• Controlled temperature and humidity during measurement
• Measurements inside an anechoic chamber
• DUT phase center does not exceed 15 cm from arch center
• Calibration done with dipole effi ciency reference values
Specifi cations also depend on Radio Communication Tester and Protocol
** One channel, 15 deg sampling, one time each probe
*** One channel, 30 deg sampling, one time each probe, measurement time
depends on protocol
2/ OTA performance testing with SG 32
SG 32 can perform both CTIA comparable TRP and TIS measurements.
SG
24
SG 24 >
29SG standard systems
The ideal solution for the performance testing of wireless devices
It is compliant to the CTIA OTA performance measurement specifi cations. SG24 was originally designed for active testing only. It is now also available for passive antenna measurements.
SG 24 uses a switching Unit to commute between pas-sive and active measurements RF instrumentation. For passive measurements it uses a Vector Network Ana-lyzer as the RF source/receiver for antenna measure-ments. The control Unit also drives the two positioning motors and the electronic scanning of the probe array.
For active measurements the test is perfomed through a Multi Protocol Radio Communication Tester. Amplifi -cation Units are added on both TX and RX chains. For Wi-Fi and other protocols that use dedicated Radio Communication Testers the Switching Unit has dedi-cated ports.
30 SG standard systems
1/ Main features
SG 24 can perform the following measurements:• Gain, directivity, 3D radiation pattern, beamwidth,
cross polar discrimination, sidelobe levels, back to front ratio (SG 24 - L).
• Radiation pattern in any polarization, linear or circular, as well as antenna effi ciency. UWB option specifi cations are provided upon request.
Measurement specifi cations*
Compact Standard Large
Measurement time for 11 frequencies** ~ 1 min ~ 1 min ~ 1 min
Typical dynamic range 50 dB 50 dB 50 dB
10 dBi 20 dBi 30 dBi 10 dBi 20 dBi 30 dBi 10 dBi 20 dBi 30 dBi AUT AUT AUT AUT AUT AUT AUT AUT AUT
PEAK GAIN ACCURACY
0.4 GHz - 0.8 GHz - - - ± 1.1 dB ± 1.0 dB - ± 1.0 dB ± 0.9 dB -
0.8 GHz - 1 GHz ± 0.8 dB ± 0.7 dB - ± 0.6 dB ± 0.6 dB - ± 0.6 dB ± 0.6 dB ± 0.5 dB
1 GHz - 6 GHz ± 0.8 dB ± 0.7 dB ± 0.6 dB ± 0.6 dB ± 0.6 dB ± 0.5 dB ± 0.6 dB ± 0.6 dB ± 0.5 dB
Peak gain repeatability ± 0.3 dB ± 0.3 dB ± 0.3 dB ± 0.3 dB ± 0.3 dB ± 0.3 dB ± 0.3 dB ± 0.3 dB ± 0.3 dB
- 10 dB SIDELOBES ACCURACY
0.4 GHz - 0.8 GHz - - - ± 1.1 dB ± 0.7 dB - ± 1.0 dB ± 0.6 dB -
0.8 GHz - 1 GHz ± 1.0 dB ± 0.6 dB - ± 0.9 dB ± 0.6 dB - ± 0.8 dB ± 0.5 dB ± 0.4 dB
1 GHz - 6 GHz ± 0.8 dB ± 0.5 dB ± 0.4 dB ± 0.7 dB ± 0.5 dB ± 0.4 dB ± 0.7 dB ± 0.5 dB ± 0.4 dB
- 20 dB SIDELOBES ACCURACY
0.4 GHz - 0.8 GHz - - - ± 3.5 dB ± 1.1 dB - ± 3.2 dB ± 1.0 dB -
0.8 GHz - 1 GHz ± 3.0 dB ± 1.0 dB - ± 2.7 dB ± 0.9 dB - ± 2.4 dB ± 0.8 dB ± 0.5 dB
1 GHz - 6 GHz ± 2.4 dB ± 0.8 dB ± 0.5 dB ± 2.1 dB ± 0.7 dB ± 0.5 dB ± 2.1 dB ± 0.7 dB ± 0.5 dB
- 30 dB SIDELOBES ACCURACY
0.4 GHz - 0.8 GHz - - - - ± 3.5 dB - - ± 3.2 dB -
0.8 GHz - 1 GHz - ± 3.0 dB - - ± 2.7 dB - - ± 2.4 dB ± 0.8 dB
1 GHz - 6 GHz - ± 2.4 dB ± 0.8 dB - ± 2.1 dB ± 0.7 dB - ± 2.1 dB ± 0.7 dB
* Specifi cations given according the following assumptions:
• Controlled temperature and humidity during measurement
• Specifi cations on radiation pattern are given for a normalized pattern
• Measurements inside an anechoic chamber
• Usage of an Agilent PNA with 1kHz IF BW
• Peak gain are given for a ± 0.3 dB of gain error on the reference antenna
• DUT phase center does not exceed 15 cm from arch center
** No oversampling, no averaging
31SG standard systems
Oversampling capabilityA combination of automated mechanical and elec-tronically scanned probe array is available to provide unlimited scan resolution in both elevation and azimuth.
The spacing between two probes is 15º. This spacing is suitable for small antenna testing. For larger antennas, an additional mechanical rotation is combined to the probe array. In this case, the posi-tioning mast rotates with ±7.5° in elevation, in order to adjust the position of the DUT on offset locations. This “fi lls in the gaps” and provides the possibility of unlimited sampling.
Rotation of the positionerof ± 7.5° in elevation
Space between 2 probes: 15°
180°
SG system: oversampling function
Mechanical characteristics*
Compact Standard Large
Probe array diameter (int/ext) 1.5 / 2.5 m 2.4 / 3.52 m 3.2 / 4.194 m
Chamber size 3.5 x 3.5 x 2.7 m 4.0 x 4.0 x 4.0 m 5.0 x 5.0 x 5.0 m
Angle between probes 15° 15° 15°
Azimuth accuracy 0.02° 0.02° 0.02°
Azimuth max. speed 30°/s 30°/s 30°/s
Oversampling capability Yes Yes Yes
AUT Max. weight 200 kg 200 kg 200 kg
DUT MAX. WEIGHT
Styrofoam mast 50 kg 50 kg 50 kg
Ultra rigid mast 200 kg 200 kg 200 kg
PVC chair Not available 100 kg 100 kg
BTS pole mast Not available Not available Option
RF EQUIPMENT CHARACTERISTICS
Number of probes 23 + 1 ref. channel 23 + 1 ref. channel 23 + 1 ref. channelFrequency range 0.4 GHz to 6 GHz 0.4 GHz to 6 GHz 0.4 GHz to 6 GHz
* Centered load without oversampling
32 SG standard systems
Maximum diameter of the DUT* (m)
FREQUENCY NUMBER OF OVERSAMPLING (GHz) x 1 x 2 x 3 x 5 x 10
0.4 1.20 1.20 1.20 1.20 1.20
1 1.15 1.20 1.20 1.20 1.20
2 0.57 1.15 1.34 1.34 1.34
3 0.38 0.76 1.15 1.34 1.34
4 0.29 0.57 0.86 1.34 1.34
5 0.23 0.46 0.69 1.15 1.34
6 0.19 0.38 0.57 0.95 1.34
* For standard model
3/ BTS antenna measurement (for SG 24 - L only)
Base station antenna measurement characteristics
SG 24 Large
BTS antenna measurement capability Yes
Geometry Spherical
BTS Max Length/Weight 179 cm/200 kg
Measurement Time for 11 frequency* ~ 1 min
* 1 port (no oversampling, no averaging), BTS antenna of 160 cm @ GSM900
2/ OTA performance testing with SG 24
SG 24 can perform both TRP and TIS measurements according to CTIA specifi cations. The SG 24 Compact,due to its size, is not CTIA certifi able but its performances are such that it can be defi ned as CTIA comparable.The SG 24 Standard and Large are CTIA certifi able.
OTA performance measurement specifi cations*
Compact Standard Large
ACCORDING TO CTIA SPECIFICATIONS
TRP accuracy free space < ± 1.6 dB < ± 1.5 dB < ± 1.4 dB
TRP accuracy talk position < ± 1.7 dB < ± 1.6 dB < ± 1.5 dB
TRP repeatability ± 0.3 dB ± 0.3 dB ± 0.3 dB
Typical TRP measurement time** < 5 min < 5 min < 5 min
TIS accuracy free space < ± 1.7 dB < ± 1.6 dB < ± 1.5 dB
TIS accuracy talk position < ± 1.8 dB < ± 1.7 dB < ± 1.6 dB
TIS repeatability ± 0.5 dB ± 0.5 dB ± 0.5 dB
Typical TIS measurement time*** 15 min > 60 min 15 min > 60 min 15 min > 60 min
CTIA COMPARABLE
TIS based on Rx Level accuracy < ± 2.3 dB < ± 2.3 dB < ± 2.3 dB
TIS based on Rx Level repeatabilty < ± 1.5 dB < ± 1.5 dB < ± 1.5 dB
Typical TIS based on Rx level mesurement time*** < 5 min < 5 min < 5 min
* Specifi cations given according the following assumptions:
• Controlled temperature and humidity during measurement
• Measurements inside an anechoic chamber
• DUT phase center does not exceed 15 cm from arch center
• Calibration done with dipole effi ciency reference values
Specifi cations also depend on Radio Communication Tester and Protocol
** One channel, 15 deg sampling, one time each probe
*** One channel, 30 deg sampling, one time each probe, measurement time depends on protocol
33SG standard systems
SG
128
SG 128>
35SG standard systems
Ideal for very large antenna measurements
SG 128 is an upscale version of the SG 64 with 127 probes (+1 reference channel).
SG 128 system is only used for passive measu-rements. It uses Analog RF Signal Generators for emitting from the probe array to the Antenna Under Test or from the Antenna Under Test to the probe
array. It uses the PAC as a RF receiver for antenna measurements. The PAC also drives the electronic scanning of the probe array. The Amplifi cation Unit has RF amplifi ers for each of the RX and TX channel.
36 SG standard systems
1/ Main features
SG 128 can perform the following measurements:• Gain, directivity, 3D radiation pattern, beamwidth,
cross polar discrimination, sidelobes levels, back to front ratio.
• Radiation pattern in any polarization, linear or circular, as well as antenna effi ciency.
Oversampling capabilityA combination of automated mechanical and electro-nically scanned probe array is available to provide unli-mited scan resolution in both elevation and azimuth.
The spacing between two probes is 2.61º. This spacing is suitable for small antenna testing. For larger antennas, an additional mechanical rotation is combined to the probe array. In this case, the posi-tioning mast rotates with ±1.3° in elevation, in order to adjust the position of the DUT on offset locations. This “fi lls in the gaps” and provides the possibility of unlimited sampling.
SG system: oversampling function
Measurement specifi cations*
SG 128
Measurement time for 11 frequencies** < 4 min
Typical dynamic range 70 dB
10 dBi 20 dBi 30 dBi AUT AUT AUT
PEAK GAIN ACCURACY
0.4 GHz - 0.8 GHz ± 0.7 dB ± 0.6 dB ± 0.5 dB
0.8 GHz - 1 GHz ± 0.5 dB ± 0.5 dB ± 0.5 dB
1 GHz - 6 GHz ± 0.5 dB ± 0.5 dB ± 0.5 dB
Peak gain repeatability ± 0.3 dB ± 0.3 dB ± 0.3 dB
- 10 dB SIDELOBES ACCURACY
0.4 GHz - 0.8 GHz ± 0.8 dB ± 0.5 dB ± 0.4 dB
0.8 GHz - 1 GHz ± 0.7 dB ± 0.5 dB ± 0.4 dB
1 GHz - 6 GHz ± 0.7 dB ± 0.5 dB ± 0.4 dB
- 20 dB SIDELOBES ACCURACY
0.4 GHz - 0.8 GHz ± 2.6 dB ± 0.8 dB ± 0.5 dB
0.8 GHz - 1 GHz ± 2.1 dB ± 0.7 dB ± 0.5 dB
1 GHz - 6 GHz ± 2.1 dB ± 0.7 dB ± 0.5 dB
- 30 dB SIDELOBES ACCURACY
0.4 GHz - 0.8 GHz - ± 2.6 dB ± 0.8 dB
0.8 GHz - 1 GHz - ± 2.1 dB ± 0.7 dB
1 GHz - 6 GHz - ± 2.1 dB ± 0.7 dB
* Specifi cations given according the following assumptions:
• Controlled temperature and humidity during measurement
• Specifi cations on radiation pattern are given for a normalized pattern
• Measurements inside an anechoic chamber
• Peak gain are given for a ± 0.3 dB of gain error on the reference antenna
• DUT phase center does not exceed 15 cm from arch center
** No oversampling, no averaging
37SG standard systems
Mechanical characteristics*
SG 128
Probe array diameter (int/ext) 6.4 m
Chamber size 10 x 10 x 10 m
Angle between probes 2.61°
Azimuth accuracy 0.02°
Azimuth max. speed 30°/s
Oversampling capability Yes
AUT Max. weight 200 kg
DUT MAX. WEIGHT
Styrofoam mast 50 kg
Ultra rigid mast 200 kg
PVC chair 100 kg
BTS pole mast Option
RF EQUIPMENT CHARACTERISTICS
Number of probes 127 + 1 ref. channelFrequency range 0.4 GHz to 6 GHz
* Centered load without oversampling
2/ BTS antenna measurement
Base station antenna measurement characteristics
SG 128
BTS antenna measurement capability Yes
Geometry Spherical
BTS Max Length/Weight 416 cm/200 kg
Measurement Time for 11 frequency* < 4 min
* 1 port (no oversampling, no averaging), BTS antenna of 160 cm @ GSM900
Maximum diameter of the DUT (m)
FREQUENCY NUMBER OF OVERSAMPLING (GHz) x 1 x 2 x 3 x 5 x 10
0.4 3.40 3.40 3.40 3.40 3.40
1 4.16 4.16 4.16 4.16 4.16
2 3.29 4.16 4.16 4.16 4.16
3 2.20 4.16 4.16 4.16 4.16
4 1.65 3.29 4.16 4.16 4.16
5 1.32 2.64 3.95 4.16 4.16
6 1.10 2.20 3.29 4.16 4.16
38 SG standard systems
39SG standard systems
OTA
OTA>
41OTA
Add-on OTA performance testing SW
and HW modules for both StarLab
and SG measurement systems
SATIMO systems are particularly suited to testing wireless devices in active mode. It is our companystrategy to follow the evolution of the different tele-communication protocols and to be present in the standardization committees to actively contribute to the test plan drafting.
SATIMO systems: by far the fastest in testing both TRP and TIS
1/ Total Radiated Power (TRP)
TRP is the total RF channel power radiated by a wire-less terminal. It is calculated by integrating the measu-red Effective Isotropic Radiated Power (EIRP) data over the measurement sphere. The EIRP is measured at a minimum every 15 degrees in both elevation and azimuth. This accounts for a total of 1656 measure-ment points (23 elevations × 12 azimuths × 2 polari-zations × 3 frequencies), with a typical measurement time of about 3 minutes (depending on the protocol and equipment).
TRP Measurement Confi guration
42 OTA
2/ Total Isotropic Sensitivity (TIS)
TIS is a fi gure of merit for the overall radiated sensitivity of a wireless terminal. It is calculated as the integral of the measured Effective Isotropic Sensitivity (EIS) data over the measurement sphere. The EIS is measured at a minimum every 30 degrees in both elevation and azimuth. This accounts for a total of 396 measure-ment points (11 elevations × 6 azimuths × 2 polari-zations × 3 frequencies), with a typical measurement time of about 90 minutes (depending on the protocol and equipment).
The EIS is found with a search algorithm that fi nds the mini-mum power level radiated onto the DUT for which the bit error rate is lower than a specifi ed limit.
TIS Measurement Confi guration
Typical 3D plot of total EIRP (EIRPtheta + EIRPphi )
43OTA
Shorten Measurement Time
SATIMO offers several methods to reduce the TIS measurement time. One of them, the TIS based on Rx level, uses the DUT receiver as power meter with certain communication protocols (like GSM and WCD-MA). From each measurement point on the measure-ment sphere, a constant power is radiated towards the DUT. The DUT receiver then reports back its re-ceived power level and the complete spherical set of power level data can be referenced to a single-point EIS measurement to determine the TIS.
3/ Software
SAM2 is the software interface for automated OTA performance testing with StarLab and SG measu-rement systems. It enables measurements of both radiated power and sensitivity, supporting most of the common wireless communications protocols:GSM, GPRS, EDGE, CDMA2000, CDMA 1xEVDO, CDMA 1xRTT, WCDMA, HSDPA, Wi-Fi 802.11 a/b/g, BLUETOOTH 802.15.1.2, PHS, TD-SCDMA, HSPA, WiMAX, GPS, DVB-H (Contact us for an updated list).
CTIA reporting supported
Data can be exported in different formats, such as tab limited ascii formats, binary, XML or NetCDF For-mat. The user can adjust the fi les content to his/her requirements: separate data according to parameters or store only a part of the measurement.Reports can be automatically generated in any formatsupported by Windows. The content and lay out of the format can be adapted to specifi c requirements, such as CTIA certifi cation reports.
A Multi-profi le User Interface
SAM2 offers different measurement confi gurations, depending on the level of expertise of the user. Users with limited experience are guided through the dif-ferent measurement steps, whereas experimented users can access a full range of parameters.
Step by step Guided User Interface
Expert Mode User Interface
44 OTA
4/ Hardware confi guration
• Radio Communication Tester: A Radio Com-munication Tester is a base station simulator with measurement capabilities. It is the signal generator and measurement receiver.
• Uplink/Downlink Switch is included in the Amplifi -cation Unit of the SG or StarLab.
• Link antenna: is a low refl ectivity antenna moun-ted inside the positioning mast, close to the turnta-ble. It rotates with the DUT, maintaining a constant link, which reduces the risk for dropped calls during testing.
• Active Switching Unit (optional): allows to switch automatically between different test equipments.
• Wideband Dynamic Range Adapter (optional): It is a step attenuator allowing SAM2 to automatically adjust the output range of the Radio Communica-tion Tester.
46 OTA
47OTA
SG
300
0
SG 3000>
50 SG 3000
Mechanical characteristics & RF equipment characteristics
Angular coverage 100° + 100°
Probe array diameter 12 m
Necessary chamber size 18 x 16 x 12 m
Frequency range 0.07 - 6 GHz
AUT Max. weight 3500 kg
ANGLE BETWEEN PROBES
0.07 – 0.4 GHz 3.2°
0.4 – 6 GHz 1°
NUMBER OF PROBES
0.07 GHz – 0.4 GHz 32
0.4 GHz – 6 GHz 101 + 1 ref. channel
Measurement specifi cations
Measurement time for 5 frequencies 7 min
Typical dynamic range 50 dB
PEAK GAIN ACCURACY
0.07 GHz – 0.4 GHz ± 2.9 dB
0.4 GHz – 0.8 GHz ± 1.3 dB
0.8 GHz – 6.0 GHz ± 1.0 dB
SG 3000M: to optimize the use
of an anechoic chamber
The SG 3000 M can be installed in already existing EMC chamber, requiring minimum changes in the set up of the chamber to avoid EMC re-certifi cation.
Measurement specifi cations
Measurement time for 5 frequencies 5.5 min
Typical dynamic range 50 dB
PEAK GAIN ACCURACY
0.4 GHz – 0.8 GHz ± 1.3 dB
0.8 GHz – 6.0 GHz ± 1.0 dB
Mechanical characteristics & RF equipment characteristics
Angular coverage 103°
Probe array diameter 12.0 m
Necessary chamber size 10 x 12 x 12 m
Frequency range 0.4 - 6 GHz
AUT Max. weight Not Applicable
ANGLE BETWEEN PROBES
0.4 – 6 GHz 1°
NUMBER OF PROBES 103
52 SG 3000
53SG 3000
SG
400
0
SG 4000>
55SG 4000
SG 4000 product line has been
specifically developed to measure
the performances of antennas
used for aerospace and defense
applications
SG 4000 is a range of products for aerospace and defense applications. Depending on the different kinds of customer need and specifi cation, SG 4000 measurement system can be adapted to match diffe-rent operational conditions.
Two families of products are available: fi xed (SG 4000F) and movable (SG 4000M).
SG 4000F: for measurement inside
anechoic chamber
These systems are installed in anechoic chambers. They can be adapted to planar, cylindrical and sphe-rical geometries.Device under test larger than 10 meters can be tested.
Satimo has developed a product line, the SG 4100F, in this family range for Radome testing purposes.
SG 4100F for Radome Testing
Measurement specifi cations
Measurement time for 10 frequencies 6 min
Typical dynamic range 70 dB
Transparency accuracyon the average transmission ± 1%
Beam deviation accuracy 0.1°
SIDELOBES LEVEL ACCURACY
At -20 dB ± 0.5 dB
At -30 dB ± 1.0 dB
At -40 dB ± 2.0 dB
Satimo Radome testing system
Mechanical characteristics & RF equipment characteristics
Angular coverage 175 °
Probe array diameter 5 m
Necessary chamber size 7x7x8
Angle between probes 1.4°
Radome Max. weight 120 kg
Typical Radome size 2.40m Ø x 1.0m deep
Frequency range X band
Number of probes 127 + 1 ref. channel
AVAILABLE MOVEMENTS
Measurement axis Azimuth 360°
Radar antenna axis Azimuth and elevation
Radar translation under the radome
56 SG 4000
SG 4000M: for in-situ measurements
These systems are movable and aim at reaching an antenna that cannot easily be placed on a positioner: antennas on board of large or complex structure.
They can either measure the whole structure or if it is too large (i.e. an aircraft) the antenna with a por-tion of structure around it (quasi local near fi eld ap-proach). The rest of the structure is taken into account through post processing software simulation (SatSim).
Satimo has developed a product line, the SG 4200M, in this family range for in-situ Radar testing purposes.
SG 4200M for Radar Testing
Measurement specifi cations
Measurement time for 3 frequencies 3 min
Typical dynamic range 50 dB
Peak gain accuracy ± 0.3 dB
Gain repeatability ± 0.1 dB
SIDELOBES LEVEL ACCURACY
At -40 dB ± 2.0 dB
Mechanical characteristics & RF equipment characteristics
Angular coverage 180 °
Probe array diameter 3.20 m
Angle between probes 3°
AUT Max. size 1m x 1m
Frequency range S band
Number of probes 61 + 1 ref. channel
Measurement capability CW, pulsed mode
AVAILABLE MOVEMENTS
Measurement axis Elevation rotation of the arch
Satimo Radar testing system
About SATIMO
SATIMO specializes in the design and manufacturing of antenna measurement systems. The company has mo-ved antenna measurement techniques forward with a unique, innovative multi-probe technology. The technology is based on the use of arrays of probes that are electronically scanned to measure electromagnetic fi elds. This technology has brought two major changes in the fi eld of antenna measurement: the speed (a single electronic scan allows the visualization of the fi elds in 1D or 2D almost instantaneously) and the fl exibility (the array can be integrated in any kind of geometry for both indoor and outdoor measurements). SATIMO is part of Microwave Vision SA, which includes ORBIT/FR and AEMI, and offers full turnkey systems to measure a stand alone antenna or antennas integrated into complex structures.
SATIMO’s customer satisfaction program
The antenna measurement system are designed and manu-factured by SATIMO’s dedicated center based in Paris. The local team is supported by a network of regional offi ces in North America, Asia and Europe. Our presence close to our cutomers is essential to ensure best customer satisfaction.
SATIMO is ISO 9001:2000 certifi ed.
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SATIMO’s Main Offi ce17, avenue de Norvège91 953 Courtaboeuf, FRANCETel: +33 (0)1 69 29 02 47Fax : +33 (0)1 69 29 02 27
SATIMO Hong-KongSuite 702, 7th fl oor Cyberport 1100 Cyberport RoadPok Fu Lam, HONG KONGTel: +852 2989 6128Fax: +852 2989 6108
SATIMO USA2105 Barrett Park Dr., Suite 104Kennesaw, GA 30144, USA Tel: +1 678 797 9172Fax: +1 678 797 9173
SATIMO Japan6-20-11 Shinbashi-IK Bldg. 1FShinbashi, Minato-ku Tokyo 105-0004, JAPANTel: +81 3 6426 0432 Fax: +81 3 3435 3233
SATIMO ItalyVia dei Castelli Romani, 5900040 Pomezia (Rome), ITALYTel: +39 06 89 99 53 11Fax: +39 06 89 99 53 24
SATIMO BretagneBât. Ponant, Ave La PérouseTechnopole Brest Iroise29280 Plouzané, FRANCETel: +33 (0)2 98 05 13 34Fax: +33 (0)2 98 05 53 87
SATIMO SwedenSofi erogatan 3A412 51 Gothenburg, SWEDENTel: + 46 31 402430Fax: + 46 31 402430
Contact SATIMO:
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Deutschland
Telemeter Electronic GmbHJoseph-Gänsler-Str. 1086609 DonauwörthTelefon +49 9 06 7 06 93-0Telefax +49 9 06 7 06 [email protected]
Schweiz
Telemeter Electronic GmbHRomanshornerstr. 1178280 KreuzlingenTelefon +41 7 16 99 20 20Telefax +41 7 16 99 20 [email protected]
Česká Republika
Telemeter Electronic s.r.o.České Vrbné 2364370 11 České BudějoviceTelefon +420 3 85 31 06 37Telefax +420 3 85 51 01 [email protected]