79-GHz SIW slot-coupled patch antenna array with low cross polarization and wide beamwidth

被引：2

作者：

Su, Guan-Ren ^{[1
]}

Li, Eric S. ^{[1
]}

Jin, Huayan ^{[2
]}

Hsu, Pei-Hsin ^{[1
]}

Sun, Jwo-Shiun ^{[1
]}

Chin, Kuo-Sheng ^{[3
]}

机构：

[1] Natl Taipei Univ Technol, Dept Elect Engn, Taipei, Taiwan

[2] Hangzhou Dianzi Univ, Key Lab RF Circuits & Syst, Minist Educ, Hangzhou, Peoples R China

[3] Chang Gung Univ, Dept Elect Engn, Taoyuan 333, Taiwan

来源：

JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS | 2023年 / 37卷 / 01期

关键词：

Index Terms; Automotive radar antenna; low cross-polarization level; patch antenna; parasitic element; wide-beam antenna; 79-GHz antenna; MICROSTRIP ANTENNA; SUBSTRATE; RADAR;

D O I：

10.1080/09205071.2022.2111280

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 79-GHz wide-beam patch antenna and 1x8 antenna array with low cross-polarization levels are presented for automotive radar applications. A substrate-integrated-waveguide slot-coupled scheme was employed to reduce the cross-polarization level of the patch antenna. Two parasitic elements were added to the main patch to form a three-element subarray for beamwidth enhancement. The simulated E-plane half-power beamwidth (HPBW) of the patch antenna is 148 degrees, and the cross-polarization level is 32.5 dB less than the co-polarization level at the boresight direction. For further gain enhancement, a 1x8 patch array was designed and fabricated. The measured results show that the proposed design can offer a wide HPBW of 144 degrees and a low cross-polarization level of 28.3 dB less than the co-polarization level at 79 GHz.

引用

页码：38 / 52

页数：15

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