High-Isolation Dual-Frequency Operation Patch Antenna Using Spiral Defected Microstrip Structure

被引：30

作者：

Fallahzadeh, S. ^{[1
]}

Bahrami, H. ^{[2
]}

Akbarzadeh, A. ^{[1
]}

Tayarani, M. ^{[1
]}

机构：

[1] Iran Univ Sci & Technol, Dept Elect Engn, Tehran 16844, Iran

[2] Tarbiat Modares Univ, Dept Elect Engn, Tehran 14115, Iran

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2010年 / 9卷

关键词：

Defected microstrip structure (DMS); dual frequency; dual polarization; filter; high isolation; patch antenna; spiral resonator; DESIGN;

D O I：

10.1109/LAWP.2010.2043810

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：

This letter presents a practical method to improve the performance of a dual-frequency dual-polarized patch antenna via increasing the isolation between receiving and transmitting ports using spiral defected microstrip resonators. They are added to the feeding lines to enhance the ports isolation of the antenna. Experimental results show that the proposed method improves isolation to higher than 55 dB at both frequency bands.

引用

页码：122 / 124

页数：3

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