Invention Grant
- Patent Title: Method and apparatus for power amplifier linearization
- Patent Title (中): 功率放大器线性化的方法和装置
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Application No.: US13882933Application Date: 2011-11-01
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Publication No.: US09007128B2Publication Date: 2015-04-14
- Inventor: Dev V. Gupta
- Applicant: Dev V. Gupta
- Applicant Address: US MA Acton
- Assignee: Newlans, Inc.
- Current Assignee: Newlans, Inc.
- Current Assignee Address: US MA Acton
- Agency: Knobbe, Martens, Olson & Bear, LLP
- International Application: PCT/US2011/058785 WO 20111101
- International Announcement: WO2012/061385 WO 20120510
- Main IPC: H03F1/08
- IPC: H03F1/08 ; H03F3/21 ; H03F1/32 ; H03F3/195 ; H03F3/24 ; H03F3/45
Abstract:
In an embodiment, a circuit includes a variable group delay configured to delay a wideband input signal to obtain a delayed input signal; a wideband operational amplifier configured to determine an error signal based on a difference between the delayed input signal and a linearized power amplifier output; a feedback amplifier configured to amplify the error signal to obtain an amplified error signal; and a directional combiner configured to combine the amplified error signal with the power amplifier output to obtain the linearized power amplifier output.
Public/Granted literature
- US20130293308A1 METHOD AND APPARATUS FOR POWER AMPLIFIER LINEARIZATION Public/Granted day:2013-11-07
Information query
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