RF Switch on Standard SiGe-CMOS Technology for System-on-a-chip Radio Transceivers

The design of a fully integrated RF switch on standard SiGe-CMOS technology is presented and discussed. A case study for 5-GHz indoor WLAN applications is reported. It allows on-chip T/R antenna switching operations providing better performance (typical total insertion losses are 0.2 and 0.9 dB, in R and T modes respectively) with respect to those obtained by using other solid-state devices as switching element

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