- 专利标题: Radio frequency (RF) switch with on and off switching acceleration
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申请号: US15585345申请日: 2017-05-03
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公开(公告)号: US10044349B2公开(公告)日: 2018-08-07
- 发明人: Baker Scott , George Maxim , Hideya Oshima , Dirk Robert Walter Leipold , Eric K. Bolton , Daniel Charles Kerr
- 申请人: Qorvo US, Inc.
- 申请人地址: US NC Greensboro
- 专利权人: Qorvo US, Inc.
- 当前专利权人: Qorvo US, Inc.
- 当前专利权人地址: US NC Greensboro
- 代理机构: Withrow & Terranova, P.L.L.C.
- 主分类号: H03K17/04
- IPC分类号: H03K17/04 ; H03K17/041 ; H03K17/16
摘要:
A Radio Frequency (RF) switch having two or more stages coupled in series is disclosed. A first Field-Effect Transistor (FET) with a first control terminal is coupled across a gate resistor to shunt the gate resistor when the first FET is on. An RF switching device is configured to pass an RF signal between a signal input and a signal output when the RF switching device is on. A second FET having a second control terminal coupled to an acceleration output is configured to shunt the RF switching device when the second FET is on. A third FET is coupled between the first control terminal and the signal input for controlling charge on a gate of the first FET. A third control terminal of the third FET is coupled to an acceleration input for controlling an on/off state of the third FET.
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