ANTENNA IMPEDANCE MATCHING DESIGN CIRCUIT AND NEAR-FIELD COMMUNICATION CIRCUIT SYSTEM

WIPO Patent Application WO/2023/178563

A1

Provided in the present disclosure are an antenna impedance matching design circuit and a near-field communication circuit system, belonging to the technical field of wireless communications. The antenna impedance matching design circuit comprises a load circuit, a filter circuit (10) and a matching circuit (20) which are connected to each other. The load circuit is connected to one end of the filter circuit (10) for connecting a near field communication chip, and the matching circuit (20) comprises a plurality of capacitors. The present disclosure may solve the impedance matching problem of relatively high antenna impedance, and optimize a reflection coefficient of the design circuit on the premise of meeting a forward transmission coefficient, so that an antenna obtains an optimal matching degree.

LIU YUJIE (CN)
CHEN XIUYUN (CN)
LONG FENG (CN)
LIANG DAPENG (CN)
GUO SHUWEI (CN)
BAI ZIXUAN (CN)
ZHAO JING (CN)
SHI MENG (CN)
HUANG CHAO (CN)
FENG YEYU (CN)

PCT/CN2022/082579

September 28, 2023

March 23, 2022

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BOE TECHNOLOGY GROUP CO LTD (CN)
BEIJING BOE DISPLAY TECH CO (CN)

H04B5/00; H01Q23/00

CN104348515A	2015-02-11
CN108737999A	2018-11-02
CN109327245A	2019-02-12
CN113690638A	2021-11-23
US20160028446A1	2016-01-28
JP2016029577A	2016-03-03

BEIJING INTELLEGAL INTELLECTUAL PROPERTY AGENT LTD. (CN)

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