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为了实现在多频段下的无线通信需求，设计了一种宽带偶极子天线。天线由介质基板上下表面的一对多边形覆铜贴片组成，通过2对形状不同的偶极子实现宽频带辐射。天线使用SMA接头直接馈电，为了减轻不平衡电流对天线辐射性能的影响，在天线上表面添加三角形结构，在下表面进行开槽，以调整表面电流的幅值与相位。实测结果表明，天线在1.3～2.5 GHz电压驻波比小于2,且方向图具有全向特性，实测结果与仿真结果具有较好的一致性。该宽带偶极子天线具有质量轻、剖面低的特点，为多频段无线通信提供了一种可能的结构。
Abstract：To meet the demand of multi-band wireless communication, a wideband dipole antenna is designed. The antenna is composed of two polygonal copper patches attached to the top and bottom layer of the substrate board. Wideband radiation is realized with two pairs of dipoles in different shapes. The antenna is fed with SMA connector directly. A triangular structure is added to the top layer and a slot is made on the bottom layer to adjust the amplitude and phase of the surface current, so as to reduce the influence of unbalanced current on the antenna radiation performance. The measured results show that the antenna has a VSWR less than 2 in the frequency band of 1.3～2.5 GHz and omnidirectional radiation patterns, and the measured results are in good agreement with the simulation results. The wideband dipole antenna with light weight and low profile provides a new structure for multi-band wireless communication.
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基本信息:
中图分类号:TN820
引用信息:
[1]邓蔚,盛丽丽,刘国,等.不平衡馈电的宽带全向偶极子天线设计[J].无线电工程,2023,53(09):2095-2101.
基金信息:
广西自然科学基金面上项目(2021GXNSFAA220010)~~
2023-04-07
2023-04-07
2023-04-07