A single-FED slot-aperture hybrid antenna for broadband circular polarization operations

被引：14

作者：

Lu, Yu-Chun ^{[2
]}

Yu, Ming-Je ^{[3
]}

Lin, Yi-Cheng ^{[1
]}

机构：

[1] Natl Taiwan Univ, Dept Elect Engn, Taipei 10617, Taiwan

[2] Natl Taiwan Univ, Grad Inst Commun Engn, Taipei 10617, Taiwan

[3] BandRich Inc, New Taipei City 23145, Taiwan

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2012年 / 54卷 / 02期

关键词：

wideband; circular polarization; slot antenna; aperture antenna; single-fed; FILTER;

D O I：

10.1002/mop.26569

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This article presents a microstrip-fed slot-aperture hybrid antenna for wideband circularly polarized (CP) operations. The antenna consists of a U-shaped slot, a rectangular aperture, and a probing strip fed by a microstrip line. In general, the U-shaped slot and the rectangular aperture resonate at two separate frequencies. When properly arranged, the proposed antenna may resonate over a single wideband of CP radiation. The 3-dB axial ratio (AR) bandwidth of the presented antenna in free space is about 27% with the gain level about 34 dBic. When a planar reflector is incorporated for the desirable unidirectional pattern, the presented antenna has an enhanced gain about 7 dBic with a 3-dB AR bandwidth of 25% and a front-to-back ratio of about 14 dB. Good agreement between measured and simulated results was achieved. (C) 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:412-415, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26569

引用

页码：412 / 415

页数：4

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