A Dual-Polarized Filtering Base-Station Antenna With Compact Size for 5G Applications

被引：51

作者：

Xue, Kun ^{[1
]}

Yang, Dong ^{[1
]}

Guo, Chaozong ^{[1
]}

Zhai, Huiqing ^{[1
]}

Li, Hongkun ^{[2
]}

Zeng, Yi ^{[2
]}

机构：

[1] Xidian Univ, Natl Key Lab Antenna & Microwave Tech, Sch Elect Engn, Xian 710071, Peoples R China

[2] Guangdong Commun & Networks Inst, Guangzhou 510663, Peoples R China

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2020年 / 19卷 / 08期

关键词：

Filtering; Dipole antennas; Slot antennas; Metals; Antenna arrays; Bandwidth; Compact; dual-polarized; filtering antenna; wideband harmonic suppression;

D O I：

10.1109/LAWP.2020.2998871

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 compact dual-polarized filtering base-station antenna is presented in this letter. The entire size (include the ground plane) of the element is only 0.53 lambda x 0.72 lambda x 0.14 lambda (lambda is the wavelength of the central working frequency). Four vertical slots etched on the coupling cross slot are for improving the high-frequency suppression of the antenna. The C-slots on the Gnd1 reduce the cross-polarization ratio at the axial direction. The antenna shows a wide working bandwidth of 25.6% and a low cross-polarization ratio about 22 dB. In order to validate the design, a 1 x 3 linear array is fabricated and tested. The antenna array works at 3.3-4.0 GHz with the average gain about 11 dBi. Besides, the array remains a good out of band rejection more than -20 dB up to 9 GHz which exhibits a good harmonic suppression performance over a wideband.

引用

页码：1316 / 1320

页数：5

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