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Title:
FEEDFORWARD AMPLIFIER AND INTERMODULATION COMPONENT DETECTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/047041
Kind Code:
A1
Abstract:
Provided is a feedforward amplifier, comprising: a carrier cancellation loop (110) having an input end serving as an input end of the feedforward amplifier; a distortion cancellation loop (120) having an input end connected to an output end of the carrier cancellation loop (110) and an output end serving as an output end of the feedforward amplifier; and a control circuit (130) having a first input end connected to the output end of the distortion cancellation loop (120) and an output end connected to a control end of the distortion cancellation loop (120); wherein, the control circuit (130) comprises an intermodulation detection circuit (131) and a microprocessor (132). An input end of the intermodulation detection circuit (131) serves as the first input end of the control circuit (130). An output end of the intermodulation detection circuit (131) is connected to a first input end of the microprocessor (132). An output end of the microprocessor (132) serves as the output end of the control circuit (130). The feedforward amplifier described above has lower complexity and can achieve a better linearization effect.

Inventors:
YU, Qijin (No 281 In Bohai Road, Development DistrictHebi, Henan 0, 458000, CN)
FAN, Mingshuang (No 281 In Bohai Road, Development DistrictHebi, Henan 0, 458000, CN)
Application Number:
CN2017/100607
Publication Date:
March 14, 2019
Filing Date:
September 05, 2017
Export Citation:
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Assignee:
HEBI TIANHAI ELECTRONIC INFORMATION SYSTEM CO LTD (No 281 In Bohai Road, Development DistrictHebi, Henan 0, 458000, CN)
International Classes:
H03F1/32; H04B1/10
Attorney, Agent or Firm:
CHINA WISPRO INTELLECTUAL PROPERTY LLP. (Room A806, Zhongdi Building China University of Geosciences Base, No.8 Yuexing 3rd Road, High-Tech Industrial Estate, Nanshan Distric, Shenzhen Guangdong 7, 518057, CN)
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