Invention Grant
- Patent Title: Dual path multi-mode power amplifier routing architecture
- Patent Title (中): 双路多模功率放大器路由架构
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Application No.: US12822631Application Date: 2010-06-24
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Publication No.: US08417201B1Publication Date: 2013-04-09
- Inventor: Derek Schooley
- Applicant: Derek Schooley
- Applicant Address: US NC Greensboro
- Assignee: RF Micro Devices, Inc.
- Current Assignee: RF Micro Devices, Inc.
- Current Assignee Address: US NC Greensboro
- Agency: Withrow & Terranova, P.L.L.C.
- Main IPC: H04B1/04
- IPC: H04B1/04

Abstract:
The present disclosure relates to multi-mode RF power amplifier (PA) circuitry that may include a first PA path and a second PA path, each of which is fed from a common RF input. During a first operating mode, the first PA path receives and amplifies a first RF input signal via the common RF input, and during a second operating mode, the second PA path receives and amplifies a second RF input signal via the common RF input. To facilitate sharing of the common RF input, during the first operating mode, the second PA path is substantially de-coupled from the common RF input, and during the second operating mode, the first PA path is substantially de-coupled from the common RF input. By sharing the common RF input, size and costs of the multi-mode RF PA circuitry may be reduced.
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