Design of Y-Type Branch Broadband Dual-polarization Antenna and C-Type Slot Line Notch Antenna

被引：0

作者：

Yan Y. ^{[1
]}

Li L. ^{[1
]}

Zhang J. ^{[1
]}

Hu H. ^{[1
]}

Zhu Y. ^{[1
]}

Chen H. ^{[1
]}

Fang Q. ^{[1
]}

机构：

[1] Kunming University of Science and Technology, Kun Ming

来源：

Chen, Hua (cherrychen40600@163.com) | 1600年 / Electromagnetics Academy卷 / 106期

基金：

中国国家自然科学基金;

关键词：

Bandwidth;

D O I：

10.2528/PIERM21102501

中图分类号：

学科分类号：

摘要：

In order to satisfy the requirements of 2G/3G/4G wireless communication, two kinds of base station antennas with wideband, dual-polarized and three-modes are proposed in this paper. Firstly, a pair of diamond dipoles is placed in an orthogonal way to realize dual-polarizations, then a pair of Y-shaped branches is added to generate a new mode. The Y-type coupling feeding can increase the impedance bandwidth without increasing the size of antenna. The antenna achieves an impedance bandwidth of 51.75% (1.69{2.87 GHz) with a return loss lower than -14 dB. The antenna also has a stable radiation performance. The gain is greater than 8.6 dBi, and the port isolation is less than -27 dB over the entire frequency band. Then based on above antenna, a C-type slot notched antenna is added to improve anti-interference ability. Finally, band stop characteristics are obtained by etching a C-type slot line resonator on two dipoles. The results show that the bandwidth is 1.7{2.69 GHz, and the sharp notched band is 1.8{1.95 GHz. The C-type slot line here can be regarded as a quarter wavelength resonator in series. Moreover, the isolation of the port is less than -28 dB, and the 3 dB beamwidth in the bandwidth is 66 ± 5°. Both antennas are fabricated and have dual polarizations, simple structure, and good radiation performance, which can be used in the next generation of wireless communication. © 2021, Electromagnetics Academy. All rights reserved.

引用

页码：105 / 115

页数：10

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