Wideband and compact quasi-Yagi antenna integrated with balun of microstrip to slotline transitions

被引：38
|
作者：
Nguyen, P. T. [1 ]
Abbosh, A. [1 ]
Crozier, S. [1 ]
机构：
[1] Univ Queensland, Sch Informat Technol & Elect Engn, Brisbane, Qld 4072, Australia
来源：
ELECTRONICS LETTERS | 2013年 / 49卷 / 02期
关键词：
D O I：
10.1049/el.2012.3192
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 wideband quasi-Yagi antenna utilising a microstrip-to-coplanar stripline balun is presented. The antenna is designed to be compact, directional and wideband so that it can be used to form a circular array for a microwave imaging system. The feeding structure of the antenna includes an ultra-wideband balun that is formed using a pair of microstrip to slotline transitions. The simulated and measured results of the proposed antenna indicate more than 70% fractional bandwidth with more than 10 dB return loss, more than 18 dB front-to-back ratio and around 4 dBi gain.
引用
收藏
页码：88 / U2
页数：2
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