Single-pole double-throw switch for communications unit has cut-off voltages of FETs set to fulfill inequalities

摘要

The switch includes two FETs with Schottky gates. The drain of the first FET is connected to the first terminal of the switch, and the source of the second FET is connected to the second terminal of the switch. The source of the first FET and the drain of the second FET are directly connected together and connected to a common terminal of the switch. The cut-off voltage of the FETs are set to fulfil inequalities relating the cut-off voltages to the voltages applied to gate terminals. An Independent claim is included for a communications unit.