A broadband and low cross polarization antenna with a balun of microstrip line coupling to slot line

被引：0
|
作者：
Sun, Kai [1 ]
Yang, Deqiang [1 ]
Liu, Sihao [2 ]
Yang, Tianming [1 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Elect Engn, Chengdu, Sichuan, Peoples R China
[2] Univ Elect Sci & Technol China, Sch Energy Sci & Engn, Chengdu, Sichuan, Peoples R China
来源：
PLOS ONE | 2018年 / 13卷 / 03期
关键词：
QUASI-YAGI ANTENNA; WIDE-BAND; BOWTIE ANTENNA;
D O I：
10.1371/journal.pone.0194181
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
In this paper, a wide-band low cross polarization antenna with a structure of microstrip line coupling to slot line as the balun is proposed. The radiation part of the antenna is fed by two pairs of parallel transmission line via a transition from a slot line which is coupled by a micro strip line. Because it is fed by parallel transmission lines, which is balanced-fed structure, the antenna can achieve an improved low cross-polarization performance. The height of the antenna is 0.146A0 (A0 is the wavelength of lowest frequency). The prototype antenna demonstrates a measured impedance bandwidth of 93.5% (2.7-7.44 GHz), a 3-dB-gain bandwidth of 77% (2.7-6.1 GHz), and a maximum gain of 10.5 dBi at 4.5 GHz.
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页数：8
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