Leiden, 3 June 2002Consortium Meeting1 First Stage Cryogenic Amplifier IF1 Centro Astronómico de...

Leiden, 3 June 2002 Consortium Meeting 1

First Stage Cryogenic Amplifier First Stage Cryogenic Amplifier IF1IF1

Centro Astronómico de YebesCentro Astronómico de Yebes

Observatorio Astronómico NacionalObservatorio Astronómico Nacional

SPAINSPAIN


HIFI Block Diagram

f~1GHzf variable

HRS-vIF processorSub-band division

f~1GHzf variable

HRS-hIF processorSub-band division

f 4 GHzf 1 MHz

WBS-vIF processorSub-band division

f 4 GHzf 1 MHz

WBS-hIF processorSub-band division

fromtelescope

Common OpticsCalibration sourceChopper mechanism7 Mixer Assemblies each with 2 mixersIF amplifiers

FPU

ControlMixer biasAmplifier biasMechanism control

FCU

LOUHousing7 LO Assemblies with 7x2 LO chains and power amplifiers

LCUControlMultiplier biasPower amplifier

bias

LSUControlMaster oscillatorSynthesizerRef. distribution

Instrument Control UnitInstrument Controller Power Conditioning (for FCU only)Command Interface Data Interface

spacecraftOBDH


Focal Plane Unit


Mixer Sub Assembly


IF System2 K level

single-ended amplifiers with isolators

powercombiners

leveltrimming

passbandequaliser

3 dBcoupler

amplifiersSIS & HEB

mixers

to HRS

to WBS

Net IF gain = 38 dB

procured by:

location:

IF gain:

SRON

MA

n/a

15 K level4 Klevel

SRON

COA

-3 dB

Spain

MA

22 dB

Switzerland

COA

32 dB -6.5 dB -3.5 dB-3 dB


Mixer Technology Baseline

6H

6L

5

4

3

2

1

mixer band

HEBNb diffusion cooled

HEBNbN phonon cooled

SIS NbTiN-AlN-NbTi

SIS NbTiN-Al2O3-Nb

SIS NbTiN-Al2O3-Nb

SIS NbTiN-Al2O3-Nb

SIS Nb-Al2O3-Nb

mixer element

lens and twin slot planar antenna

Al co-planar waveguide

1703 – 1910 GHz


Al co-planar waveguide

1410 – 1703 GHz


Al on NbTiN microstrip

1120 – 1250 GHz

corrugated horn and waveguide


960 – 1120 GHz



800 – 960 GHz



640 – 800 GHz


Nb on Nb microstrip

480 – 640 GHz

feed and coupling structure

matching circuitfrequency range


Centro Astronómico de YebesObservatorio Astronómico Nacional

SPAIN

• Development Model DM

• Qualification Model QM

• Flight Model FM

• Flight Spare FS

SPACE ACRONIMSSPACE ACRONIMS



SPAIN

• DM Program (Yebes)– Amplifiers

– Isolators

– Isolator-Cable-Amplifier

• QM & FM Programs (Transfer to Industry)– First Prototype

• Qualification Program• Summary of critical items• Planning

CONTENTSCONTENTS



SPAIN

DM PROGRAM (Amplifiers)DM PROGRAM (Amplifiers)

• Design (series 6000)– InP TRW 200 devices in both stages – Substrate glued to the box using epoxy – SMA connectors with “O ribbon” connection – MDM connector for the bias circuit– Bias circuit on substrate– Gate voltage divider included in the bias circuit– ESD and EMC filtering (Pending)– Extra cavity for EMC filter– Mechanical interface with mixer sub-assembly– Mechanical interface with isolator



SPAIN




SPAIN


3 4 5 6 7 8 90

5

10

15

20

25

30

HERSCHEL IF1 YCF 6 DMs

YCF 6004 YCF 6005 YCF 6006 YCF 6009 YCF 6014

YCF 6004 YCF 6005 YCF 6006 YCF 6009 YCF 6014

f [GHz]

Gai

n [d

B]

0

2

4

6

8

10

12

Noise T

emperature [K

]



SPAIN




SPAIN

DM PROGRAM (Isolators)DM PROGRAM (Isolators)



SPAIN

DM PROGRAM (Isolators+Cable+Amplifier)DM PROGRAM (Isolators+Cable+Amplifier)



SPAIN




SPAIN

QM & FM PROGRAMS (First Prototype)QM & FM PROGRAMS (First Prototype)



SPAIN

QUALIFICATION PROGRAMQUALIFICATION PROGRAM

• Qualification Boards (ALCATEL) (pending)

• Qualification Tests (SRON) (pending)

• Components (received)

• ESD tests (almost done)

• Radiation tests (done)

• Documentation (PID) !!!!!

• Contract with ALCATEL for 4 QMs + 7 FMs about to be signed (1 yr.)



SPAIN

CRITICAL ITEMSCRITICAL ITEMS

• EMC and ESD Filtering

• Isolators (Fabrication, qualification, measurements)

• Cold vibration tests (SRON)

• Measurements in ALCATEL

• CPPA components too late

• Schedule

• 2-4 GHz Amplifier



SPAIN

Id Activity1 DM Program for FPU2 Selection of InP devices 3 Solve Open Issues4 Design, Production and Measurement first prototype5 Design Review and Correction to Design 6 Production, Measurement and Correction second prototype7 Production of 7 DMs8 Measurement of 2 DMs9 Delivery 2 DMs

10 Measurement of 3 DMs11 Delivery 3 DMs12 Transfer to Industry13 Manufacturing Cryo System & Instalation14 Training of Technician & Prod. DM by Ind.15 QM Program16 Industrial Preliminary Study17 Qualification Program18 Selection of the source of InP devices 19 Procurements20 TRW Devices21 Passive Components22 Isolators23 Measurement of devices 24 Production & Measurement of 2 CQMs25 Delivery26 FM Program27 Design Updates28 Production & Measurement of 14 FMs29 Delivery last FM30 FS Program31 Design Updates32 Production & Measurement of 14 FSs33 Delivery last FS

15 March

30 April

1 November

31 March

1 October

1 April

15 November

31 December

2000 2001 2002 2003 2004 2005 2006

Leiden, 3 June 2002Consortium Meeting1 First Stage Cryogenic Amplifier IF1 Centro Astronómico de...

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