Newly developed 30/20 GHz band SS-TDMA transponder
Abstract
This paper describes the design and performance of an on-board 30 GHz band receiver, a 20 GHz band transmitter, and a 14 x 14 IF switch in a satellite-switched-time-division-multiple-access (SS-TDMA) system, which are developed in order to confirm the required vibration and thermal-vacuum performance. To attain a 14 x 14 IF switch with high reliability, a new redundant IF switch configuration (crosspoint redundancy) has been proposed and adopted. The seven-year survival probability of the one-out-of-two redundant 14 x 14 IF switches is estimated to be 0.993 for the switch failure rate of 200 x 10 to the -9th/hour. By applying new technologies such as full hybrid MIC implementation, the total weight of newly developed receiver and transmitter is reduced to about 25 percent of that of the present Japanese domestic communication satellite CS-2.
- Publication:
-
11th Communication Satellite Systems Conference
- Pub Date:
- 1986
- Bibcode:
- 1986coss.conf..282T
- Keywords:
-
- Communication Satellites;
- Extremely High Frequencies;
- Intermediate Frequencies;
- Satellite Transmission;
- Time Division Multiple Access;
- Transponders;
- Japanese Spacecraft;
- Receivers;
- Switching Circuits;
- Transmitters;
- Communications and Radar