Characteristics of single- and double-layer microstrip square-ring antennas

被引：75

作者：

Bafrooei, PM ^{[1
]}

Shafai, L ^{[1
]}

机构：

[1] Univ Manitoba, Dept Elect & Comp Engn, Winnipeg, MB R3T 5V6, Canada

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 1999年 / 47卷 / 10期

关键词：

microstrip antennas; ring; stacked;

D O I：

10.1109/8.805910

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 method for miniaturization of microstrip patch antenna without degrading its radiation characteristics is investigated, It involves perforating the patch to form a microstrip square-ring antenna, which is investigated numerically and experimentally, The ring geometry introduces additional parameters to the antenna that can be used to control its impedance, resonance frequency, and bandwidth. For a single square ring increasing the size of perforation increases its input impedance, but decreases the resonance frequency and bandwidth. It has a small effect on directivity of the antenna. To match the antenna to a transmission line and also enhance its bandwidth, the ring is stacked by a square patch or another square ring. The computed results are compared with experimental data and again good agreement is obtained.

引用

页码：1633 / 1639

页数：7

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