- 专利标题: Switch circuit and method of switching radio frequency signals
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申请号: US14883499申请日: 2015-10-14
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公开(公告)号: US09780778B2公开(公告)日: 2017-10-03
- 发明人: Mark L. Burgener , James S. Cable
- 申请人: Peregrine Semiconductor Corporation
- 申请人地址: US CA San Diego
- 专利权人: Peregrine Semiconductor Corporation
- 当前专利权人: Peregrine Semiconductor Corporation
- 当前专利权人地址: US CA San Diego
- 代理机构: Jaquez Land Greenhaus LLP
- 代理商 Martin J. Jaquez, Esq.; Alessandro Steinfl, Esq.
- 主分类号: H04B1/28
- IPC分类号: H04B1/28 ; H01L29/76 ; H04M1/00 ; H03K17/687 ; H01P1/15 ; H03K17/06 ; H03K17/10 ; H03K17/693 ; H03K19/0185 ; H03K19/0944 ; H04B1/40 ; H03K17/08
摘要:
An RF switch circuit and method for switching RF signals that may be fabricated using common integrated circuit materials such as silicon, particularly using insulating substrate technologies. The RF switch includes switching and shunting transistor groupings to alternatively couple RF input signals to a common RF node, each controlled by a switching control voltage (SW) or its inverse (SW_), which are approximately symmetrical about ground. The transistor groupings each comprise one or more insulating gate FET transistors connected together in a “stacked” series channel configuration, which increases the breakdown voltage across the series connected transistors and improves RF switch compression. A fully integrated RF switch is described including control logic and a negative voltage generator with the RF switch elements. In one embodiment, the fully integrated RF switch includes an oscillator, a charge pump, CMOS logic circuitry, level-shifting and voltage divider circuits, and an RF buffer circuit.
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