Wideband U-Slot Patch Antenna with Reconfigurable Radiation Pattern

被引:0
|
作者
Wang, Jie [1 ]
Yin, Jiexi [1 ]
Wang, Haiming [1 ]
Yu, Chen [1 ]
Hong, Wei [1 ]
机构
[1] Southeast Univ, State Key Lab Millimeter Waves, Nanjing 210096, Jiangsu, Peoples R China
基金
中国国家自然科学基金;
关键词
patch antenna; U-slot; reconfigurable radiation pattern; BEAMWIDTH;
D O I
暂无
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 U-slot patch antenna with reconfigurable radiation pattern is investigated. The antenna composes three patches which are one coaxial-fed U-slot driven patch and two parasitic patches located near the two non-radiating edges of the middle driven patch. One varactor diode is installed in middle of each parasitic patch. Both beamwidth and main lobe direction can be tuned by controlling the direct current bias voltages of the two varactor diodes. The presented antenna has wide operating bandwidth of 6.4% at 1.4 GHz. Its beamwidth can be continuously changed from 60 degree to 130 degree and its main lobe direction can scan from -20 degree to +20 degree in the H-plane. Its peak antenna gain is 8.8 dBi with gain variation of 3.5 dB along the entire beamwidth tuning range and 8.5 dBi with gain variation of 2.5 dB along the entire beam scanning range. Simulation and measurement results agree well.
引用
收藏
页码:611 / 615
页数:5
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