Meander Line Coupled Cavity-Backed Slot Antenna for Broadband Circular Polarization

被引：14
|
作者：
Luo, Kang [1 ]
Chen, Bin [1 ]
Ding, Wei-Ping [2 ]
机构：
[1] PLA Univ Sci & Technol, Natl Key Lab Electromagnet Environm Effects & Ele, Nanjing 210007, Jiangsu, Peoples R China
[2] PLA Univ Sci & Technol, Commun & Engn Inst, Nanjing 210007, Jiangsu, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2015年 / 14卷
基金：
美国国家科学基金会;
关键词：
Broadband antenna; cavity-backed; circular polarization; slot antenna; STACKED MICROSTRIP ANTENNA; WIDE-BAND; PATCH ANTENNA; ARRAY;
D O I：
10.1109/LAWP.2015.2399017
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：
A Meander lines coupled cavity-backed slot antenna with broadband circularly polarized (CP) property is investigated. The proposed antenna comprises four meander lines, a cavity, and a sequential rotation feed network. By connecting ground planes of the patch substrate and the feed substrate with the slot cavity leads to resonant frequency at low band. The validity of the antenna's performances is verified with a fabricated prototype. Measured results show that the designed antenna can yield 10-dB return-loss bandwidth of 40% (1.8 to 2.7 GHz), 3-dB axial-ratio (AR) bandwidth of about 34.04% (1.95 to 2.75 GHz), and 3-dB gain bandwidth of about 35.29% (2.1-3 GHz) with the maximum gain 5.15dBi. The antenna without cavity is also discussed.
引用
收藏
页码：1215 / 1218
页数：4
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