Switched-beam slot antenna over electromagnetic band-gap reflector

被引：0
|
作者：
Uno, Hiroyuki [1 ]
Saito, Yutaka
Koyanagi, Yoshio
Yagitani, Satoshi
Nagano, Isamu
机构：
[1] Panasonic Mobile Commun R&D Lab Co Ltd, Kanazawa, Ishikawa 920, Japan
[2] Panasonic Mobile Commun Co Ltd, Yokosuka, Kanagawa 239, Japan
[3] Kanazawa Univ, Grad Sch Nat Sci & Technol, Kanazawa, Ishikawa 920, Japan
来源：
IEICE TRANSACTIONS ON COMMUNICATIONS | 2007年 / E90B卷 / 09期
关键词：
switched-beam antenna; tilted beam; electromagnetic band-gap(EBG) reflector; slot antenna;
D O I：
10.1093/ietcom/e90-b.9.2263
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 paper presents the switched-beam slot antenna over the electromagnetic band-gap (EBG) reflector. This antenna is composed of two slot elements fed with a phase difference and the EBG reflector, which is used in order to realize a low profile structure. The radiation characteristics of this antenna are calculated using the FDTD method. Calculations show that the height of the antenna using the EBG reflector is 60% lower than that of the antenna using a perfect electric conductor (PEC) reflector. The radiation characteristics at the center of the operating frequency band in the EBG reflector are equivalent to that in the PEC reflector. It is shown that the tilt angle of the main beam in the elevation plane varies with the operating frequency, and the variation in the case of the EBG reflector is caused by its frequency-dependent reflection phase. Moreover, the radiation pattern of the fabricated antenna is measured. The results demonstrate that the low profile design can be achieved by using the EBG reflector, and reveal the influence of the EBG reflector on the antenna efficiency.
引用
收藏
页码：2263 / 2270
页数：8
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