Antenna impedance automatic matching method and system

The invention discloses an antenna impedance automatic matching method and system. The method comprises steps of S1, obtaining a reflection coefficient S11 parameter and a standing-wave ratio of a flexible patch antenna during signal transmission; wherein the flexible antenna comprises an active fee...

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Bibliographic Details
Main Authors ZENG QINGHUAI, BI GAOWEI, BAI YAFEI, ZENG LUXIN, XIN XUEGANG
Format Patent
LanguageChinese
English
Published 26.01.2021
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
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Summary:The invention discloses an antenna impedance automatic matching method and system. The method comprises steps of S1, obtaining a reflection coefficient S11 parameter and a standing-wave ratio of a flexible patch antenna during signal transmission; wherein the flexible antenna comprises an active feeder line and a passive reactance element located between an upper plane and a ground plane. S2, optimizing the reflection coefficient S11 parameter and the standing-wave ratio by using a genetic algorithm and a closed-loop algorithm under a target function to obtain an optimal capacitance value of the passive reactance element; and S3, controlling a passive reactance element on the flexible antenna to reach an optimal capacitance value, and realizing impedance matching of the flexible antenna system. According to the method, adaptive matching is carried out on the flexible patch antenna for mammary gland dielectric property measurement, and matching efficiency of the antenna is improved. Inthe self-adaptive matchin
Bibliography:Application Number: CN202010867729