Engineering topics
Publications and source records attributed to Coban, E..
The design and development of a unique coupler crossbar 20 x 20 microwave switch matrix are described. The test results of the proof of concept model that meets the requirements for a high speed satellite switched, time division multiple access (SS-TDMA) system are presented.
The use of a dynamic switching matrix for future communication satellites will significantly increase the communication channel capacity and improve the system capability and flexibility. This paper describes the design and development of a unique coupler crossbar 20 x 20 microwave switch matrix. This paper also presents the test results of the proof-of-concept model that meets the requirements for a high-speed satellite switched, time division multiple access (SS-TDMA) system.
Satellite-switched TDMA, an effective means for the increasing of communication satellite channel capacity and the improvement of system flexibility, requires that the spacecraft carry an IF switch matrix in order to provide interconnectivity among multiple beam antennas. Attention is presently given to the development of a 20 x 20 IF switch matrix for the NASA 30/20 GHz communications satellite which will provide a 2.5 GHz bandwidth at C-band frequencies with a switching speed of 10 nsec. Switch matrix architecture, switching device characteristic, and distribution control unit design practices are discussed, together with switch matrix reliability.