Invention Grant
- Patent Title: Radio frequency switching circuit with hot-switching immunity
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Application No.: US17472064Application Date: 2021-09-10
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Publication No.: US11489548B2Publication Date: 2022-11-01
- Inventor: Anders Stensgaard Larsen , Mitchell R. Blozinski , Daniel Studer
- Applicant: Motorola Solutions, Inc
- Applicant Address: US IL Chicago
- Assignee: Motorola Solutions, Inc
- Current Assignee: Motorola Solutions, Inc
- Current Assignee Address: US IL Chicago
- Agency: Baker Botts L.L.P.
- Agent Michael A. Sartori
- Main IPC: H04B1/04
- IPC: H04B1/04 ; H03F3/21 ; H03K17/56

Abstract:
Apparatus and methods for providing hot-switching immunity for radio frequency switching circuits are disclosed. A radio frequency switching circuit may include both a mechanical switch and a solid-state switch. The mechanical switch may be configurable to couple an output path of a power amplifier to a subsequent component in its transmission path when in a first mechanical switch state and to decouple the output path of the power amplifier from the subsequent component when in a second mechanical switch state. The solid-state switch may be configurable to operatively decouple the mechanical switch from a radio frequency power source when in a first solid-state switch state but not when in a second solid-state switch state. The solid-state switch may be in the first solid-state switch state during transitions of the mechanical switch between the first and second mechanical switch states.
Public/Granted literature
- US20210409044A1 Radio Frequency Switching Circuit With Hot-Switching Immunity Public/Granted day:2021-12-30
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