Body-biased switching device

摘要

Embodiments provide a switching device including one or more field-effect transistors (FETs). In embodiments, a body-bias circuit may derive a bias voltage based on a radio frequency signal applied to a switch field-effect transistor and apply the bias voltage to the body terminal of the switch field-effect transistor.

主权项

1. A circuit configured to switch radio-frequency (“RF”) signals, the circuit comprising:
a field-effect transistor (“FET”) including a source terminal, a gate terminal, a drain terminal, and a body terminal; and a body-bias circuit coupled with the source terminal, the drain terminal and the body terminal, the body-bias circuit having a first circuit element coupled between the source terminal and the body terminal and a second circuit element coupled between the drain terminal and the body terminal, the first and second circuit elements to:
derive a negative bias voltage based on an RF signal through the first and second circuit elements; andprovide the negative bias voltage to the body terminal when the FET is in an off state.