MINIATURIZED BAND-NOTCHED ULTRA-WIDEBAND ANTENNA

被引:4
作者
Ding, Wen [1 ]
Wang, Gaofeng [2 ]
机构
[1] Wuhan Univ, Sch Power & Mech Engn, Wuhan 430072, Peoples R China
[2] Hangzhou Dianzi Univ, Sch Elect & Informat, Hangzhou 310018, Zhejiang, Peoples R China
基金
中国国家自然科学基金;
关键词
miniaturization; ultra-wideband; band-notched; anti-resonator; particle swarm optimization; MONOPOLE ANTENNA;
D O I
10.1002/mop.30141
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 miniaturized band-notched ultra-wideband antenna with a bandwidth from 2.7 to 13.1 GHz (i.e., bandwidth ratio 4.9:1) for VSWR <= 2 and a stop band from 5 to 6 GHz is designed and optimized. The overall area is reduced by 30% and a radiation rejection band is engineered by inserting a 1/2 wavelength thin strip dipole to serve as an anti-resonator in the undesired band where the radiated field from the radiator is phase-reversed with respect to that from the inserted anti-resonator, consequently the total radiation is cancelled out, and the stop band can be easily tuned by adjusting the dipole length and width. It is shown that this antenna is robust in rejecting environmental interferences. A prototype of this antenna is fabricated and measured. The measurements agree well with the simulation results. (C) 2016 Wiley Periodicals, Inc.
引用
收藏
页码:2780 / 2786
页数:8
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