Broadband circularly polarised slot antenna array for L- and S-band applications

被引：35

作者：

Pourahmadazar, J. ^{[1
]}

Rafii, V. ^{[1
]}

机构：

[1] IAU, Dept Elect & Elect Engn, Urmia Branch, Orumiyeh, West Azarbaijan, Iran

来源：

ELECTRONICS LETTERS | 2012年 / 48卷 / 10期

关键词：

CPW;

D O I：

10.1049/el.2012.0294

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 new design of a broadband circularly polarised square slot antenna array (CPSSAA) fed by a symmetric coplanar waveguide (CPW) for L- and S-band applications is presented. The proposed antenna is composed of 2 x 2 CPSS antennas and a sequentially rotated feed network. In this model, compared with the previous CPSSAA with an asymmetric fed structure, the impedance bandwidth of the antenna is increased, and is 71% wider than the impedance bandwidth of a previous similar design. The designed antenna operates over the frequency band 1-4.34 GHz (4.34:1, 125%) for VSWR < 1.6 exhibiting a 120% (1.11-3.98 GHz, 3.58:1) circular polarisation bandwidth. The proposed CPSSAA can provide a peak gain of about 8.9 dBic at 3 GHz, with gain variations less than 1.5 dB at operating frequencies. Measured and simulated results validate the proposed design.

引用

页码：542 / U20

页数：2

共 5 条

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Nourinia, J. ;

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Shirzad, Hamed .

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 2011, 10 :369-372

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