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

Abstract. 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.

[1]  R. Molfino,et al.  An intelligently controlled RF power amplifier with a reconfigurable MEMS-varactor tuner , 2005, IEEE Transactions on Microwave Theory and Techniques.

[2]  C. Samuelsson,et al.  RF MEMS based impedance matching networks for tunable multi-band microwave low noise amplifiers , 2009, 2009 International Semiconductor Conference.

[3]  C. Siegel,et al.  Simplified RF-MEMS Switches Using Implanted Conductors and Thermal Oxide , 2006, 2006 European Microwave Integrated Circuits Conference.

[4]  D. Peroulis,et al.  A MEMS reconfigurable matching network for a class AB amplifier , 2003, IEEE Microwave and Wireless Components Letters.

[5]  M. Oppermann,et al.  GaN MMIC based T/R-Module Front-End for X-Band Applications , 2008, 2008 European Microwave Integrated Circuit Conference.