Coplanar waveguide-FED planar spiral antenna with integrated impedance transformer

被引：1
作者：
Vahidpoor, Zeynab [1 ]
Forooraghi, Keyvan [1 ]
Fotowat-Ahmady, Ali [2 ]
Atlasbaf, Zahra [1 ]
机构：
[1] TMU, Dept Elect & Comp, Microwave Lab, Tehran, Iran
[2] Sharif Univ Technol, Dept Elect, Tehran, Iran
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2013年 / 55卷 / 06期
关键词：
spiral antenna; impedance transformer; balun; coplanar waveguide; broadband antenna; SLOT ANTENNA; CIRCULAR-POLARIZATION; CAVITY;
D O I：
10.1002/mop.27535
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 planar spiral antenna with integrated impedance transformer is presented which needs no external balun and can be fed by a coplanar waveguide.The proposed structure has a return loss of <10 dB over a broad bandwidth of 0.55 GHz that is suitable for cognitive radio applications. The effects of different spiral and transformer parameters are investigated through various simulations. A case of the proposed antenna is fabricated, and measurement results are presented including return loss, gain, and radiation patterns. (c) 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:13381341, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27535
引用
收藏
页码：1338 / 1341
页数：4
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