A dual band printed dipole antenna with spiral structure for WLAN application

被引:29
作者
Kim, MJ [1 ]
Cho, CS
Kim, J
机构
[1] Hankuk Aviat Univ, Dept Informat & Telecommun Engn, Gyeonggi 412791, South Korea
[2] Kangwon Natl Univ, Chunchon 200701, South Korea
关键词
dual band antenna; printed spiral; WLAN;
D O I
10.1109/LMWC.2005.859947
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
In this letter, the design procedure and electrical performance of a dual band (2.4/5.8 GHz) printed dipole antenna using spiral structure are proposed and investigated. For the first time, a dual band printed dipole antenna with spiral configuration is proposed. In addition, a matching method by adjusting the transmission line width, and a new bandwidth broadening method varying the distance between the top and bottom spirals are reported. The operating frequencies of the proposed antenna are 2.4 GHz and 5.8 GHz which cover WLAN system. The proposed antenna achieves a good matching using tapered transmission lines for the top and bottom spirals. The desired resonant frequencies are obtained by adjusting the number of turns of the spirals. The bandwidth is optimized by varying the distance between the top and bottom spirals. A relative position of the bottom spiral plays an important role in achieving a bandwidth in terms of 10-dB return loss.
引用
收藏
页码:910 / 912
页数:3
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