Critical design of the Ka-band on-board switching transponder for communication, oceanographic, and meteorological satellite (COMS)

This paper discusses the detail design of Ka-band on-board switching transponder that ETRI has applied the development of a new communication payload system for communication, oceanographic, and meteorological satellite (COMS). The satellite communication (SATCOM) system which to be designed to acquire the communication mission of COMS consists of communication payload, satellite ground control system, and experimental test Earth Station. This paper focuses on the technology development being performed for the space segment of SATCOM system at the ETRI, principally related to the COMS project. For critical design of Ka-band transponder subsystem, the trade-off design has been performed with emphasis on the improving performances and optimizing the payload system. In this paper, introduction of SATCOM system and major RF performances analysis will be mainly presented