Invention Grant
- Patent Title: Efficient power transfer power amplifier (PA) architecture
- Patent Title (中): 高效功率放大器(PA)架构
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Application No.: US14056135Application Date: 2013-10-17
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Publication No.: US09071210B2Publication Date: 2015-06-30
- Inventor: Nadim Khlat , Alexander Wayne Hietala
- Applicant: RF Micro Devices, Inc.
- 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: H03F1/14
- IPC: H03F1/14 ; H03F1/56 ; H03F3/20 ; H03F3/68 ; H03F3/24

Abstract:
An efficient power transfer power amplifier (PA) architecture is disclosed that includes a first PA, a first impedance transformation network (ITN) coupled to the first PA, a second PA, and a second ITN coupled to the second PA. A switching network having a plurality of load outputs along with a first switch input coupled to a first impedance output of the first ITN and a second switch input coupled to a second impedance output of the first ITN, a third switch input coupled to a third impedance output of the second ITN, and a fourth switch input coupled to a fourth impedance output of the second ITN. A control system is adapted to control the switching network to switch signals at the first, second, third, and fourth switch inputs such that select ones of the signals travel paths having matching impedances to loads coupled to the plurality of load outputs.
Public/Granted literature
- US20140111275A1 EFFICIENT POWER TRANSFER POWER AMPLIFIER (PA) ARCHITECTURE Public/Granted day:2014-04-24
Information query
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