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A new broadband circularly polarized square-slot antenna with low axial ratios

机译：低轴比的新型宽带圆极化方槽天线

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摘要

A new broadband circularly polarized (CP) square-slot antenna with low axial ratios is proposed in this article. The antenna is comprised of an L-shaped microstrip line with tapered section and a square-slot ground plane with some stubs and slots, which are utilized as perturbations for the desirable antenna performance. By loading stubs and slots in the square-slot ground plane, the 2-dB axial ratio bandwidth (ARBW) and 10-dB return loss bandwidth for the presented antenna can be markedly improved. The measured results show that its 2-dB ARBW is 4.2 GHz (54.2% from 5.65GHz to 9.85GHz) and its 10-dB return loss bandwidth is about 8.9 GHz (92.7% from 5.15GHz to 14.05GHz). The proposed antenna features compact structure and broad 2-AR bandwidth which could completely cover the WLAN (5.725-5.85GHz) band. Therefore, the proposed antenna is suitable for circular polarization applications in C band.
机译：本文提出了一种新型的低轴向比的宽带圆极化（CP）方槽天线。天线由带有锥形截面的L形微带线和带有一些短截线和缝隙的方槽接地平面组成，它们被用作扰动以获得所需的天线性能。通过在方槽接地平面中加载桩和槽，可以显着改善所提出天线的2 dB轴向比率带宽（ARBW）和10 dB回波损耗带宽。测量结果表明，其2 dB ARBW为4.2 GHz（从5.65 GHz至9.85 GHz为54.2％），其10 dB回波损耗带宽为8.9 GHz（从5.15 GHz至14.05 GHz为92.7％）。拟议的天线具有紧凑的结构和广泛的2-AR带宽，可以完全覆盖WLAN（5.725-5.85GHz）频段。因此，所提出的天线适用于C波段的圆极化应用。

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  • 作者

    Wang Lei; Fang Wenxiao; En Yunfei; Huang Yun; Shao Weiheng; Yao Bin;

  • 作者单位

    China Elect Prod Reliabil & Environm Testing Res, Sci & Technol Reliabil Phys & Applicat Elect Comp, Guangzhou 610510, Guangdong, Peoples R China;

    China Elect Prod Reliabil & Environm Testing Res, Sci & Technol Reliabil Phys & Applicat Elect Comp, Guangzhou 610510, Guangdong, Peoples R China;

    China Elect Prod Reliabil & Environm Testing Res, Sci & Technol Reliabil Phys & Applicat Elect Comp, Guangzhou 610510, Guangdong, Peoples R China;

    China Elect Prod Reliabil & Environm Testing Res, Sci & Technol Reliabil Phys & Applicat Elect Comp, Guangzhou 610510, Guangdong, Peoples R China;

    China Elect Prod Reliabil & Environm Testing Res, Sci & Technol Reliabil Phys & Applicat Elect Comp, Guangzhou 610510, Guangdong, Peoples R China;

    China Elect Prod Reliabil & Environm Testing Res, Sci & Technol Reliabil Phys & Applicat Elect Comp, Guangzhou 610510, Guangdong, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    broadband antenna; circularly polarzied; square-slot; low axial ratios;

    机译：宽带天线;圆极化;方槽;低轴比;

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