A digital predistortion linear broadband radio frequency power amplifier device

A technology of digital predistortion and radio frequency power, which is applied in digital-to-analog converters, improved amplifiers to reduce nonlinear distortion, analog-to-digital converters, etc., can solve problems such as accelerating the research progress of DPD linear broadband radio frequency power amplifiers, and achieve low cost , strong flexibility, highly flexible effect
CN101741317BActive Publication Date: 2011-12-28WUHAN HONGXIN TELECOMM TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WUHAN HONGXIN TELECOMM TECH CO LTD
Publication Date
2011-12-28

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Abstract

The invention discloses an administrable digital predistortion linear broadband radio-frequency power amplifier (ADPDWPA) device. The device comprises a broadband radio-frequency signal processing module, a broadband digital predistortion DPD digital unit, a broadband radio-frequency power amplifier, a broadband radio-frequency analog feedback loop module and a control administration module, wherein the broadband digital predistortion DPD digital unit comprises a broadband digital predistortion engine module, a DAC, an ADC1, an ADC2 and a broadband radio-frequency transmitter module. The ADPDWPA device adopts a modularization structure concept easy to expand, has high flexibility, low cost, easy administration and openness, supports various communication system requirements, only needs to replace different modules and upgrade different algorithms, can be applied to a base station system with different communication systems, can also be applied to a mobile communication base station system of the next generation and provides a reliable application basis for the industrialization of a future high-efficiency linear broadband radio-frequency power amplifier.
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Description

technical field

[0001] The invention relates to the technical field of radio frequency power amplifiers, in particular to a digital predistortion linear broadband radio frequency power amplifier device. Background technique

[0002] Facing the Peak-to-Average Power Ratio (PAPR) problem encountered by Orthogonal Frequency Division Multiplexing (OFDM) technology in the next generation mobile communication system (IMT-Advanced), Many peak clipping (Crest Factor Reduction, ie CFR) techniques and methods have been proposed. However, for improving the linearity and efficiency of a Wideband High Power Amplifier (W-HPA), it is very limited to only use the CFR technology to improve the efficiency of the W-HPA. In order to meet the trend of miniaturization and environmental protection of base station equipment in IMT-Advanced mobile communication systems, research on high-efficiency, linear broadband RF power amplifier technology is also gradually emerging. Facing the wide bandwidth...

Claims

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