基于辐射抵消的微型圆极化微带天线

2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Pub Date : 2022-08-12 DOI:10.1109/ICMMT55580.2022.10022457

Wenyan Wei, Xuan Zhang, Yan Shi

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引用次数: 0

摘要

本文设计了一种用于全球定位系统(GPS)和北斗(BD)导航的微型圆极化微带贴片天线。所提出的天线由两个堆叠的散热器组成，由威尔金森功率分配器馈电。通过对消反向左旋圆极化(LHCP)场和叠加横向右旋圆极化(RHCP)场，该天线在L1 GPS和B1 BD波段发射出前后比为14 dB的RHCP波。通过对辐射的抵消，所提出的GPS天线具有50mm×50mm×12mm的紧凑尺寸。实验结果与仿真结果吻合良好，表明天线具有良好的辐射性能和小型化的特点。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A Miniature Circularly Polarized Microstrip Antenna Based on Radiation Cancellation

In this paper, a miniature circularly polarized microstrip patch antenna has been designed for global positioning system (GPS) and beidou (BD) navigation applications. The proposed antenna consists of two stacked radiators fed by a Wilkinson power divider. By cancelling out the left-handed circular polarization (LHCP) fields in the backward direction and superposing right-handed circular polarization (RHCP) fields in the broadside direction, which are radiated by two radiators, the proposed antenna radiates a RHCP wave with a front-to-back ratio of 14 dB in the L1 GPS and B1 BD bands. With the radiation cancellation, the proposed GPS antenna has a compact size of 50mm×50mm×12mm. Good agreement between the measurement and the simulation are observed to demonstrate good radiation performance and miniature size of the proposed antenna.

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2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)

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