A metasurface-based slit-loaded wideband circularly polarized crossed dipole antenna

被引：13

作者：

Chen, Qiang ^{[1
]}

Zhang, Hou ^{[1
]}

Yang, Lu-Chun ^{[2
]}

Zhong, Tao ^{[1
]}

机构：

[1] Airforce Engn Univ, Air Def & Antimissile Inst, Xian 710051, Shaanxi, Peoples R China

[2] China Mobile Shenzhen Ltd, Shenzhen 518048, Guangdong, Peoples R China

来源：

INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING | 2018年 / 28卷 / 01期

基金：

中国国家自然科学基金;

关键词：

AMC; circularly polarized; low profile; wideband; BROAD-BAND; SLOT ANTENNA; MONOPOLE ANTENNA; PATCH ANTENNAS; BANDWIDTH; RESONATORS; DESIGN;

D O I：

10.1002/mmce.21173

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A metasurface-based low-profile crossed dipole antenna with wide circularly polarized bandwidth for 2.45GHz ISM band wireless communications is proposed and fabricated in this article. Consisting of four slit-loaded rectangular patches, the double-sided printing crossed dipoles are fed by a pair of vacant-quarter printed rings which circularly polarized (CP) radiation could be generated. With slits loaded, by properly combining the fundamental mode of the two inverted L-shaped dipole, the slot mode and extra resonance generated by the AMC surface, a wideband circularly polarized operation can be obtained. After optimization, the final design with an overall size of 0.44(0)x0.44(0)x0.1448(0) at 2.4 GHz had measured a 31.6% (2-2.75 GHz) impedance bandwidth and 3 dB axial ratio bandwidths of measured were 23.2% (2.1-2.65 GHz), respectively. In addition, the antenna performed a small gain variation (7.0-7.5 dBic) and a front-to-back ratio (FBR) of over 25 dB across the whole CP region.

引用

页数：8

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