An Industry-level Implementation of a Compact Microwave Diode Switch Matrix for Flexible Input Multiplexing of a Geo-stationary Satellite Payload (1181)

We have developed a 4x4 electronically reconfigurable switch matrix for satellite communications at Ka-band frequencies (17…22 GHz), utilizing low-temperature co-fired ceramic multilayer technology. During a successful one-year on-orbit verification aboard a German test satellite, the switch matrix achieved the technology-readiness-level (TRL = 9) for low-earth orbit missions. Based on these results, we have designed an advanced version of the switch matrix for geo-stationary satellites.