双频段MIMO印刷偶极子天线设计

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摘  要：该文设计一款双频段MIMO印刷偶极子天线系统，由2个天线单元组成，每个辐射单元由2个不同尺寸的微带开口环组成。通过在地板上开方形栅格，减少了2个天线单元之间的耦合，提高天线端口间的隔离度，在2个工作频段内隔离度均高于25 dB。

关键词：多输入多输出天线；隔离度；双频段；结构设计；辐射方向

中图分类号：TN822      文献标志码：A          文章编号：2095-2945（2024）29-0056-04

Abstract： A dual-band MIMO printed dipole antenna system is designed in this paper， which is composed of two antenna elements， each of which is composed of two microstrip open rings of different sizes. By opening a square grid on the floor， the coupling between the two antenna elements is reduced， and the isolation between the antenna ports is improved， which is higher than 25 dB in the two working frequency bands.

Keywords： multi-input multi-output （MIMO） antenna; isolation; dual-band; structural design; radiation direction

近年来，现代通信技术的快速发展对系统容量和频谱效率提出更高的要求，MIMO技术应运而生。（剩余3625字）