Invention Grant
- Patent Title: Radio frequency switch circuitry
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Application No.: US17020993Application Date: 2020-09-15
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Publication No.: US11451226B2Publication Date: 2022-09-20
- Inventor: Michael Roberg , Charles Forrest Campbell
- Applicant: Qorvo US, Inc.
- Applicant Address: US NC Greensboro
- Assignee: Qorvo US, Inc.
- Current Assignee: Qorvo US, Inc.
- Current Assignee Address: US NC Greensboro
- Agency: Withrow & Terranova, P.L.L.C.
- Main IPC: H03K17/687
- IPC: H03K17/687

Abstract:
Radio frequency (RF) switch circuitry is disclosed having a field-effect transistor with a drain, a source, and a gate, wherein the gate is driven by switch driver circuitry having a control terminal for receiving switch-on and switch-off signals and a driver terminal for outputting on-state and off-state voltages. The switch driver circuitry is configured to respond to the switch-on signal by generating the on-state voltage that when applied to the gate allows an RF signal to pass between the drain and the source and respond to the switch-off signal by generating the off-state voltage that when applied to the gate blocks the RF signal from passing between the drain and the source. A low-pass filter has an inductor coupled between the gate and the driver terminal, wherein a direct current (DC) path between the gate and the driver terminal has a total DC resistance of no more than 100 Ω.
Public/Granted literature
- US20220085806A1 RADIO FREQUENCY SWITCH CIRCUITRY Public/Granted day:2022-03-17
Information query
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