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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
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
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页码:1338 / 1341
页数:4
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