A Broadband GaAs MMIC SPDT Switch

A monolithic microwave broadband single pole double throw (SPDT) switch empolying series and shunt GaAs FETs is present. The chip size is 0. 97 x1. 23mm. In DC-10GHz freqency range , better than 2. 2dB insertion loss. 32dB Isolation and 12dB return loss have been achived . The switch demonstates a power handling cspacity of better than 20dBm at 5GHz and a switching time less than lns . It has very low DC power dissipation .