Invention Grant
US08085869B2 Configurable load impedance for power amplifier predistortion calibration
有权
功率放大器预失真校准的可配置负载阻抗
- Patent Title: Configurable load impedance for power amplifier predistortion calibration
- Patent Title (中): 功率放大器预失真校准的可配置负载阻抗
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Application No.: US12031686Application Date: 2008-02-14
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Publication No.: US08085869B2Publication Date: 2011-12-27
- Inventor: Arya Reza Behzad
- Applicant: Arya Reza Behzad
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: Garlick Harrison & Markison
- Agent Bruce E. Garlick
- Main IPC: H04L25/49
- IPC: H04L25/49

Abstract:
An integrated circuit radio transceiver and method therefor includes an integrated circuit radio transceiver operable to provide specified gain levels and transmit path filter responses to correspond with a selected power spectral density mask. Changes in gain may be provided solely digital gain changes or may include analog gain module gain changes. A transmitter selects from one of at least three masks to reduce or eliminate spectral regrowth out of band to satisfy EVM requirements. Circuitry is provided to allow a transceiver to determine in advance what pre-distortion compensation settings are required for the various gain settings.
Public/Granted literature
- US20090207896A1 CONFIGURABLE LOAD IMPEDANCE FOR POWER AMPLIFIER PREDISTORTION CALIBRATION Public/Granted day:2009-08-20
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