Patent ID: 8729948

Claim:
A high frequency switch comprising: a common port outputting a transmission signal to an antenna; a plurality of transmission ports each having the transmission signal input thereto; and a plurality of switching units each connected between the plurality of transmission ports and the common port to conduct or block the transmission signal from each of the transmission ports to the common port, wherein: each of the switching units includes a plurality of series-connected metal oxide semiconductor field effect transistors (MOSFETs) formed on a silicon substrate, the plurality of MOSFETs are any one of body contact-type FETs and floating body-type FETs, each of the switching units includes both of the body contact-type FETs and the floating body-type FETs, the body contact-type FETs include body resistors, and in each of the switching units, the body contact-type FETs are connected to the common port in positions closer than those of the floating body-type FETs.