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设计了一种同轴馈电的双1型缝隙结构的双频微带贴片天线。采用加载缝隙的方法改变圆形贴片表面电流路径来实现天线的双频带工作,利用电磁仿真软件HFSS 14.0对天线特性进行仿真,通过分析缝隙宽度和长度对天线辐射特性的影响,获得了最佳结构参数。结果表明,当回波损耗小于–10 d B,天线工作于2.57~2.63 GHz和5.78~5.84 GHz,且相对带宽分别达到2.3%和1.0%,天线的整体辐射特性良好,且结构简单,易于实现,可应用在微波存取全球互通(Wi MAX 2.6 GHz)和无线局域网络(WLAN 5.8 GHz)。
A double-frequency microstrip patch antenna with double-type 1 gap structure is designed. The method of loading gap is used to change the current path of the circular patch to realize the dual-band operation of the antenna. The electromagnetic characteristics of the antenna are simulated by the electromagnetic simulation software HFSS 14.0. By analyzing the influence of gap width and length on the radiation characteristics of the antenna, Structural parameters. The results show that when the return loss is less than -10 d B, the antenna operates at 2.57 ~ 2.63 GHz and 5.78 ~ 5.84 GHz, and the relative bandwidths reach 2.3% and 1.0% respectively, the overall radiation characteristics of the antenna are good and the structure is simple and easy to implement , Which can be used in Worldwide Interoperability for Microwave Access (Wi MAX 2.6 GHz) and Wireless Local Area Networks (WLAN 5.8 GHz).