Invention Grant
- Patent Title: Switch circuit and method of switching radio frequency signals
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Application No.: US14883499Application Date: 2015-10-14
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Publication No.: US09780778B2Publication Date: 2017-10-03
- Inventor: Mark L. Burgener , James S. Cable
- Applicant: Peregrine Semiconductor Corporation
- Applicant Address: US CA San Diego
- Assignee: Peregrine Semiconductor Corporation
- Current Assignee: Peregrine Semiconductor Corporation
- Current Assignee Address: US CA San Diego
- Agency: Jaquez Land Greenhaus LLP
- Agent Martin J. Jaquez, Esq.; Alessandro Steinfl, Esq.
- Main IPC: H04B1/28
- IPC: H04B1/28 ; H01L29/76 ; H04M1/00 ; H03K17/687 ; H01P1/15 ; H03K17/06 ; H03K17/10 ; H03K17/693 ; H03K19/0185 ; H03K19/0944 ; H04B1/40 ; H03K17/08

Abstract:
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.
Public/Granted literature
- US20160191051A1 Switch Circuit and Method of Switching Radio Frequency Signals Public/Granted day:2016-06-30
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