A Simple Tri-Polarization Reconfigurable Magneto-Electric Dipole Antenna

被引：41
作者：
Shi, Yan [1 ]
Cai, Yi [1 ]
Zhang, Xiang-Fan [1 ]
Kang, Kai [1 ]
机构：
[1] Xidian Univ, Sch Elect Engn, Xian 710071, Shaanxi, 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：
Effective bandwidth; magneto-electric (ME) dipole; polarization diversity; reconfigurable polarizations; PATCH ANTENNA; DIVERSITY; SLOTS;
D O I：
10.1109/LAWP.2017.2786945
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 simple magneto-electric (ME) dipole antenna with reconfigurable polarizations has been designed. The proposed ME dipole antenna mainly comprises three pairs of horizontal rectangular patches, a G-shaped feed, a metallic cavity, and four PIN diodes. By independently controlling the ON/OFF state of the PIN diodes, the horizontal rectangular patches can be connected/disconnected, thus exhibiting linear polarization, right-hand circular polarization, and left-hand circular polarization. The experimental results demonstrate that the proposed ME dipole antenna has a wide effective bandwidth of 33.9% from 1.74 to 2.45 GHz for both S-11 <= -10 dB and axial ratio <= 3 in all polarization states, and a stable gain of 8.2 +/- 0.8 dBi. Good unidirectional radiation characteristic and low backlobe level are achieved over the whole operating frequency band. A prototype was fabricated, and good agreement between measured and simulated results validates polarization diversity of the proposed antenna.
引用
收藏
页码：291 / 294
页数：4
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