Enabling Deep Space CubeSat Missions: Telecommunication challenge Nacer Chahat and Richard Hodges...
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Enabling Deep Space CubeSat Missions: Telecommunication challenge Nacer Chahat and Richard Hodges [email protected] NASA Jet Propulsion Laboratory California Institute of Technology PRE-DECISIONAL INFORMATION – For Planning and Discussion Purposes Only.
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Transcript of Enabling Deep Space CubeSat Missions: Telecommunication challenge Nacer Chahat and Richard Hodges...
Enabling Deep Space CubeSat Missions:
Telecommunication challenge Nacer Chahat and Richard Hodges
NASA Jet Propulsion Laboratory
California Institute of Technology
PRE-DECISIONAL INFORMATION – For Planning and Discussion Purposes Only.
DRDMARS RECONNAISSANCE ORBITER
MRODistance
(km) 100-400 million
Data-rate 500 Kbps to 4 Mbps
Power 100W (X-band)35W (Ka-band)
Antenna size 3m
Antenna gain
46.7dBi (X-band)56.4dBi (Ka-band)
Pointing accuracy 0.1°
PRE-DECISIONAL INFORMATION – For Planning and Discussion Purposes Only.
DRDMARS CUBESAT REQUIREMENT
MRO CubeSatDistance
(km) 100-400 million 149 million
Data-rate 500 Kbps to 4 Mbps 8kbps
Power 100W (X-band)35W (Ka-band)
4W (X-band)2W (ka-band)
Antenna size 3m ~0.5m
Antenna gain
46.7dBi (X-band)56.4dBi (Ka-band)
30dBi (X-band)42dBi (Ka-band)
Pointing accuracy ±0.1° ±2°
PRE-DECISIONAL INFORMATION – For Planning and Discussion Purposes Only.
DRDTX/RX PATCH ANTENNA ARRAY
TX / RX patch array at X-band
Stowage volume: 1x10x30cm3 (3U) 1x20x30cm3 (6U)
Antenna gain: 23 dBi (3U) 4kbps 26 dBi (6U) 7.5kbps
20cm
30cm
PRE-DECISIONAL INFORMATION – For Planning and Discussion Purposes Only.
DRDTX PATCH ANTENNA ARRAY
Two antenna : TX and RX antenna at X-band
TX antenna stowage volume : 1x10x20cm3 (3U) 1x20x20cm3 (6U)
Antenna directivity: 19.6 dBi (3U) 1.9 kbps 22.6 dBi (6U) 3.8 kbps
TX
RX20cm
20cm
PRE-DECISIONAL INFORMATION – For Planning and Discussion Purposes Only.
DRDRX PATCH ANTENNA ARRAY
Two antenna : TX and RX antenna at X-band
RX antenna stowage volume : 1x10x20cm3 (3U) 1x10x20cm3 (6U)
RX antenna directivity: 15.7 dBi (3U) 18.7 dBi (6U)
TXRX
20cm
10cm
PRE-DECISIONAL INFORMATION – For Planning and Discussion Purposes Only.
DRDREFLECTARRAY ANTENNA
X-band antennas
Antenna gain: 29.5 dBi (TX)
Stowage volume: 2x20x30cm3 (6U)
Data-rate: 8Kbps
DeployableFeed
ReflectarrayPanels
RX Antenna
ISARA Ka-Band Reflectarray Panels
PRE-DECISIONAL INFORMATION – For Planning and Discussion Purposes Only.
DRDDEPLOYABLE HIGH GAIN ANTENNA
Ka-band antenna
Antenna gain: 42.5 dBi
Stowage volume: 1.5U
Data-rate: 8Kbps
PRE-DECISIONAL INFORMATION – For Planning and Discussion Purposes Only.
DRDQUESTIONS?
Questions?
PRE-DECISIONAL INFORMATION – For Planning and Discussion Purposes Only.
2014 California Institute of Technology.Government sponsorship acknowledged.
