Dual-frequency circularly-polarized patch antenna with compact, size and small frequency ratio

被引：103

作者：

Bao, X. L. ^{[1
]}

Ammann, M. J. ^{[1
]}

机构：

[1] Dublin Inst Technol, Sch Elect & Commun Engn, Ctr Telecommun Value Chain Res, Dublin 8, Ireland

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2007年 / 55卷 / 07期

关键词：

annular-ring patch; axial ratio; cross-slot; dual-band circular polarization antennas;

D O I：

10.1109/TAP.2007.900271

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 novel probe-fed single-layer annular-ring patch antenna for dual-frequency circular polarization is evaluated numerically and experimentally verified. The proposed antenna consists of a small circular patch surrounded by two concentric annular-rings, which is loaded by an unequal lateral cross-slot ground plane. The circularly-polarized frequency ratio of the two resonant modes is tunable to a small value, suitable for wireless communications systems. The patch size of the proposed antenna is reduced by about 53% compared to the conventional circular patch at a given frequency. The radiation characteristics of the novel antenna are also presented.

引用

页码：2104 / 2107

页数：4

共 6 条

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