A 0.01–8-GHz (12.5 Gb/s) 4 $\,\times\,$ 4 CMOS Switch Matrix

This paper presents a 0.01-8-GHz 4×4 switch matrix in 0.13-μm CMOS technology. A deep n-well series-shunt-series switch is chosen as the switching core, and the transistor sizes are optimized for low insertion loss and high isolation up to 8 GHz. Full electromagnetic analysis is also performed on the switching core to result in a compact design. The 4×4 switch matrix shows a measured insertion los...