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Simulation of RF MEMS based matching networks and a single pole double throw switch for multiband T/R modules

: Figur, S.A.; Raay, F. van; Quay, R.; Vietzorreck, L.; Ziegler, V.


Advances in radio science 11 (2013), S.197-206
ISSN: 1684-9965
Fraunhofer IAF ()

This work presents concepts and designs for two essential components of a frequency agile transmit and receive module based on Radio Frequency Micro Electro Mechanical System (RF MEMS) switches for the frequency range from 3.5 GHz up to 8.5 GHz. The advantages of a variable power amplifier (PA) matching compared to a fixed broadband solution are examined and discussed in context with the designed components. To demonstrate the principle functionality, an assembly concept is presented, which allows for the integration of a frequency agile 6 W power amplifier with surrounding components like phase shifters, switches and antennas. An RF MEMS switching element is introduced as a high isolation polarization switch, featuring low insertion loss as well as almost no DC power consumption.