Dual-Band Microstrip Circular Patch Antenna With Monopolar Radiation Pattern

被引：46
|
作者：
Dai, Xi-Wang [1 ]
Zhou, Tao [1 ]
Cui, Guan-Feng [2 ]
机构：
[1] Hangzhou Dianzi Univ, Sch Elect Informat, Coll Elect Informat, Inst Antennas & Microwaves Technol, Hangzhou 310018, Zhejiang, Peoples R China
[2] Xidian Univ, Natl Key Lab Sci & Technol Antennas & Microwaves, Xian 710071, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2016年 / 15卷
基金：
中国国家自然科学基金;
关键词：
Dual band; low profile; microstrip antenna; monopolar antenna; mushroom structure;
D O I：
10.1109/LAWP.2015.2490079
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 microstrip monopolar patch antenna with zeroth-order resonance is proposed and analyzed in this letter. The antenna is a combination of circular patch antenna with center-fed and circularly periodic mushroom units. With the ze-roth-order resonant (ZOR) mode and TM0.2 mode, the proposed antenna can create horizontal magnetic loop currents on the patch, which lead to a low profile of 0.02 lambda at the low frequency band. The radiation mechanism of the proposed antenna is discussed. The antenna is fabricated on a double-layered printed circuit board (PCB) and center-fed by a 50- Omega SMA connector. Simulated and measured results show that the proposed antenna produces a stable monopole-like radiation pattern in two working frequency bands. The corresponding impedance bandwidths and gains are 0.75% and 5.1 dBi for the low frequency band and 20% and a range of 5.8-8 dBi for the high frequency band.
引用
收藏
页码：1004 / 1007
页数：4
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