Patent ID: 9374065
Filing Date: 2016-06-21
CPC Classification: H03F,H03H

Claim Text:
1. A variable inductor circuit, comprising: a first transistor and a second transistor which are connected between a power supply and a ground, with a source of the first transistor being connected to a drain of the second transistor and with a gate of the first transistor being electrically disconnected from the second transistor, the gate of the first transistor being supplied with a bias voltage; a wiring which connects a drain of the first transistor and a gate of the second transistor; a capacitor whose one terminal is connected between the source of the first transistor and the drain of the second transistor and whose other terminal is grounded; and a control circuit which adjusts an inductance value by controlling a capacitance value of the capacitor or a gate voltage of the first transistor or the second transistor.