用于WLAN／WiMAX的双频紧凑型天线

内容简介：提出了一种新型共面波导馈电的小型双频宽频带天线。天线由一环形单极子和一矩形贴片组合而成，矩形贴片嵌在环形单极子内部，使得天线结构紧凑。天线分别由矩形贴片和环形单极子辐射产生高低两个工作频段，实测高低频段带宽可覆盖无线局域网络（WLAN）和微波存取全球互通（WiMAX）全部通信频段。同时，天线在各工作频段内具有良好的全向辐射特性。实测和仿真的结果基本吻合，从而验证了这种设计方法的有效性。

Abstract：A compact novel coplanar waveguide （CPW）-fed dual-wideband antenna is presented. The antenna is formed by a ring monopole and a rectangular patch. The rectangular patch is embedded in the ring monopole, which makes the antenna structure compact. The ring monopole and the patch are employed to generate the lower and upper bands respectively. The measured bandwidths for the lower and upper bands are able to cover the whole wireless LAN（WLAN） and worldwide in- teroperability for microwave access（WiMAX） operating bands. In addition, good omnodirectional radiation characteristic over the operating bands are obtained. The measurement and simulation results are in good agreement, which validates the pro- posed design.

作者：褚庆昕, 叶亮华,

关键词：天线, 双频天线, 小型化天线, 宽频带天线, 无线局域网,