Application of dual-mode filter techniques to the broadband matching of microstrip patch antennas

被引：9

作者：

Abunjaileh, A. I. ^{[1
]}

Hunter, I. C. ^{[1
]}

Kemp, A. H. ^{[1
]}

机构：

[1] Univ Leeds, Sch Elect & Elect Engn, Leeds LS2 9JT, W Yorkshire, England

来源：

IET MICROWAVES ANTENNAS & PROPAGATION | 2007年 / 1卷 / 02期

关键词：

D O I：

10.1049/iet-map:20060049

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：

Structures such as square or circular microstrip patch antennas may support two orthogonal resonant modes. The paper presents a new method of utilising the dual-mode property to increase the bandwidth of microstrip antennas. The input impedance of such a dual-mode antenna may be represented as a second-order [adder network of coupled resonators, where each resonator is coupled to a load resistor. A theoretical method for evaluating the coupling values in the network is presented, enabling the bandwidth of a dual-mode antenna to be maximised. A theoretical bandwidth improvement of up to 3:1 is achieved when compared to a single-mode antenna. This is confirmed with an experimental dual-mode circular microstrip patch antenna.

引用

页码：273 / 276

页数：4

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