Differential Frequency-Reconfigurable Antenna Based on Dipoles for Sub-6 GHz 5G and WLAN Applications

被引：63

作者：

Jin, Guiping ^{[1
]}

Deng, Chuhong ^{[2
]}

Xu, Yechun ^{[1
]}

Yang, Ju ^{[1
]}

Liao, Shaowei ^{[1
]}

机构：

[1] South China Univ Technol, Sch Elect & Informat Engn, Guangzhou 510641, Peoples R China

[2] State Grid Chenzhou Power Supply Co, Chenzhou 423000, Peoples R China

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2020年 / 19卷 / 03期

基金：

美国国家科学基金会;

关键词：

Differential antenna; dipole; frequency reconfigurability; p-i-n diode;

D O I：

10.1109/LAWP.2020.2966861

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 new differential frequency-reconfigurable antenna based on dipoles is presented in this letter. The basic structure of the proposed antenna consists of two pairs of vertical arms forming two dipoles, the feeding structure, mode switching structure, and p-i-n diodes. By switching "on" and "off" p-i-n diodes, the antenna can resonate at two states, and thus work centered at 3.5 and 5.5 GHz, respectively. Though the two states correspond to different resonant modes, the effective radiation parts are the same and the mode switching structure will not contribute to the far field for both states. This results in similar radiation patterns for both states. Besides, the proposed antenna is also simple in structure and wide in bandwidth. The measured -10 dB impedance bandwidths are 2.89-4.07 GHz (33%) and 5.1-6.19 GHz (19.8%) for the two states, respectively.

引用

页码：472 / 476

页数：5

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