Non-blocking Ka-band switch matrix module in three-dimensional multilayer ceramic technology

In this paper we describe the architecture and design of a non-blocking 4×4 switch matrix module for mm-wave satellite communications, where flexible signal distribution becomes increasingly relevant. Following the successful on-orbit verification of a blocking 4×4 switch matrix for a reconfigurable Ka-band input multiplexer aboard the planned German Heinrich Hertz mission, the non-blocking switch matrix module offers relevant advantages in terms of signal routing and total power consumption. The non-blocking switch matrix utilizes hybrid-integrated precision laser-trimmed Wilkinson power splitters and low microwave-loss absorptive transistor-based SPST-switches.