Wideband Circularly Polarized Patch Antennas on Reactive Impedance Substrates

被引：79
|
作者：
Bernard, L. [1 ]
Chertier, G. [2 ]
Sauleau, R. [3 ]
机构：
[1] French German Res Inst St Louis ISL, Ballist Grp, F-68301 St Louis, France
[2] PolyTech Nice, F-06903 Sophia Antipolis, France
[3] Univ Rennes 1, IETR, CNRS, UMR 6164, F-35042 Rennes, France
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2011年 / 10卷
关键词：
Circular polarization; meta-substrates; printed antenna; reactive impedance substrate (RIS);
D O I：
10.1109/LAWP.2011.2168803
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 reduced-size wideband single-feed circularly polarized patch antenna is introduced for telemetry applications in S-band around 2300 MHz. The proposed structure consists of a slot-loaded patch antenna printed over an optimized metamaterial-inspired reactive impedance substrate (RIS). We demonstrate, step by step, the main role of each antenna element by comparing numerically and experimentally the performance of various antenna configurations: antenna over a single-or dual-layer substrate, standard patch or slot-loaded patch, antenna with or without RIS. The final optimized structure exhibits an axial-ratio bandwidth of about 15% and an impedance bandwidth better than 11%, which is much wider than the conventional printed antenna on the same materials.
引用
收藏
页码：1015 / 1018
页数：4
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