Invention Grant
US09197256B2 Reducing effects of RF mixer-based artifact using pre-distortion of an envelope power supply signal
有权
使用包络电源信号的预失真降低基于RF混频器的伪像的影响
- Patent Title: Reducing effects of RF mixer-based artifact using pre-distortion of an envelope power supply signal
- Patent Title (中): 使用包络电源信号的预失真降低基于RF混频器的伪像的影响
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Application No.: US14048109Application Date: 2013-10-08
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Publication No.: US09197256B2Publication Date: 2015-11-24
- Inventor: Nadim Khlat
- 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: H04B1/04
- IPC: H04B1/04 ; H03F1/32 ; H03F1/02 ; H03F3/195 ; H03F3/24 ; H03C1/62
Abstract:
A radio frequency (RF) power amplifier (PA) and an envelope tracking power supply are disclosed. The RF PA receives and amplifies an RF input signal to provide an RF transmit signal using an envelope power supply signal, which at least partially envelope tracks the RF transmit signal, such that the RF input signal has an RF mixer-based artifact. The envelope tracking power supply provides the envelope power supply signal, which includes mixer-based artifact pre-distortion to at least partially remove effects of the RF mixer-based artifact from the RF transmit signal.
Public/Granted literature
- US20140099906A1 REDUCING EFFECTS OF RF MIXER-BASED ARTIFACT USING PRE-DISTORTION OF AN ENVELOPE POWER SUPPLY SIGNAL Public/Granted day:2014-04-10
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