Compact Wideband Circularly Polarized Patch Antenna Array Using Self-Sequential Rotation Technology

被引：10
|
作者：
Qi, Zihang [1 ,2 ]
Zhu, Yuefang [1 ,2 ]
Li, Xiuping [1 ,2 ]
机构：
[1] Beijing Univ Posts & Telecommun, Key Lab Universal Wireless Commun, Minist Educ, State Key Lab Informat Photon & Opt Commun,Beijin, Beijing 100876, Peoples R China
[2] Beijing Univ Posts & Telecommun, Sch Elect Engn, Beijing 100876, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2022年 / 21卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Circular polarization (CP); dual-high-order-mode cavity; high gain; self-sequential rotation technique; HIGH-GAIN;
D O I：
10.1109/LAWP.2022.3142307
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：
In this letter, a compact wideband circularly polarized patch antenna array is proposed to cover the 57-71 GHz hand. The antenna array is constructed by 45 degrees inclined slits loaded circular radiating patches with rectangular back cavities, two-layer sequential rotation feed networks, and a waveguide transition. Novel self-sequential rotation technology is introduced using a dual-high-order-mode cavity to improve the axial ratio (AR) and impedance bandwidths of the subarray. Compared with conventional sequential rotation feed networks, the proposed feeding scheme provides higher aperture efficiency. A 4 x 4 patch antenna array is fabricated using standard printed circuit board technology. Measured results show that the -10 dB impedance and 3 dB AR overlapped bandwidth is 23.8% (57-723 GHz). The measured peak gain is 20.5 dBic with an aperture efficiency of 87.7% at 66 GHz.
引用
收藏
页码：700 / 704
页数：5
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