Abstract

This paper describes the design and fabrication of the transmit/receive (T/R) switch for frequency lower than 1GHz application. To increase the isolation, two stage switch is designed. And to optimize the performance of isolation and insertion loss, the effects of gate series resistances (GSR) on insertion loss and switching time are analyzed for the first time. The fabricated chips were tested and the measured isolation from DC (direct current) to 1GHz exhibits 55dB and insertion loss lower than 2.1dB

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