Dual-Band and Low-Profile Differentially Fed Slot Antenna for Wide-Angle Scanning Phased Array

被引：16
|
作者：
Guo, Jiajia [1 ,2 ]
Xiao, Shaoqiu [1 ]
Liao, Shaowei [3 ]
Wang, Bingzhong [1 ]
Xue, Quan [3 ]
机构：
[1] Univ Elect Sci & Technol China, Inst Appl Phys, Chengdu 610054, Sichuan, Peoples R China
[2] City Univ Hong Kong, State Key Lab Millimeter Waves, Hong Kong, Hong Kong, Peoples R China
[3] South China Univ Technol, Sch Elect & Informat Engn, Guangzhou 510641, Guangdong, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2018年 / 17卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Differentially fed; dual-band; low-profile; phased array; slot antenna; wide-angle scanning;
D O I：
10.1109/LAWP.2017.2785259
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 novel dual-band slot antenna with low profile is proposed. The slot antenna is constructed on dual-layer substrates, in which a metal cavity is fabricated by metalized vias. The antenna is fed by a differential scheme, so it can be easily integrated with other systems. The proposed antenna can operate at dual resonant frequencies because of the metal cavity and the radiating slot. A corresponding differential feeding network is constructed on another substrate. The half-power beamwidth of the slot antenna's radiation pattern is wide in the electric plane (E-plane), and it is suitable to be applied to wide-angle scanning phased arrays. The phased array built by the slot antenna can realize wide-angle scanning within 3 dB peak gain fluctuation in the E-plane at both frequencies. Measured results show that the phased array can scan from -67 degrees to 69 degrees at 5.02 GHz and from -62 degrees to 64 degrees at 5.58 GHz.
引用
收藏
页码：259 / 262
页数：4
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