60-ghz wideband circularly polarized antenna array based on TE340-mode SIC and sequential rotation feeding technique

被引：2

作者：

Zhu, Yuefang ^{[1
,2
,3
]}

Qi, Zihang ^{[1
,2
,3
]}

Zhu, Hua ^{[1
,2
,3
,4
]}

Li, Xiuping ^{[1
,2
,3
]}

机构：

[1] Beijing Univ Posts & Telecommun, Sch Elect Engn, Beijing, Peoples R China

[2] Beijing Univ Posts & Telecommun, Beijing Key Lab Work Safety Intelligent Monitorin, Beijing, Peoples R China

[3] Beijing Univ Posts & Telecommun, Minist Educ, Key Lab Universal Wireless Commun, Beijing, Peoples R China

[4] State Key Lab Millimeter Waves, Nanjing, Peoples R China

来源：

IET MICROWAVES ANTENNAS & PROPAGATION | 2021年 / 15卷 / 07期

基金：

中国国家自然科学基金;

关键词：

16;

D O I：

10.1049/mia2.12092

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：

The authors propose a 4 x 4 circularly polarized (CP) antenna array with wide impedance bandwidth and axial-ratio (AR) bandwidth and design the same for 60-GHz applications. The overall structure of the proposed antenna array consists of a cavity-back circular patch array and two layer feed-networks. The upper feed-network is with four TE340 high-order mode substrate integrated cavities (SIC). Fed with SIC, circular patches with a pair of 42 degrees-inclined slits can achieve circular polarization. In order to improve the AR bandwidth and gain performance, the substrate integrated waveguide (SIW) sequential rotation feeding technique is utilized in the lower feed-network. For proof of concept, the 4 x 4 array is fabricated and measured. Measured results show that -10-dB impedance bandwidth of the proposed antenna array is 27.2% from 52 to 68.4 GHz and 3-dB AR bandwidth is 18.9% from 55.7 to 67.3 GHz. Furthermore, the 3-dB gain bandwidth is 26.2% from 53 to 69 GHz with a peak gain reaching 19.3 dBic at 62 GHz.

引用

页码：807 / 814

页数：8