Low-Sidelobe Design of Comb-Line Antenna Using Slot Loading for 77 GHz to 81 GHz Radar Applications

被引：0
|
作者：
Cheng, Yang [1 ,2 ]
Qi, Zihang [1 ,2 ]
Zhao, Wenyu [1 ,2 ]
Zhu, Hua [3 ]
Li, Xiuping [1 ,2 ]
机构：
[1] Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing Key Lab Work Safety Intelligent Monitoring, Minist Educ,Key Lab Universal Wireless Commun, Beijing 100876, Peoples R China
[2] Beijing Univ Posts & Telecommun, Sch Elect Engn, Beijing 100876, Peoples R China
[3] Shenzhen Univ, Coll Phys & Optoelect Engn, Key Lab Optoelect Devices & Syst, Minist Educ & Guangdong Prov, Shenzhen 518060, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2024年 / 23卷 / 12期
基金：
国家重点研发计划;
关键词：
Couplings; Antenna measurements; Antennas; Bandwidth; Antenna radiation patterns; Gain; Slot antennas; Broadband; comb-line array; low sidelobe level (SLL); slot-loading; traveling-wave; ARRAY ANTENNA; MICROSTRIP; LEVEL;
D O I：
10.1109/LAWP.2024.3463006
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 new type of traveling-wave comb-line array is proposed, which introduces slots notched at the feed part of the elements. The coupling efficiency of each element can be changed by adjusting the depth of the slots without altering the size of the elements when encountering high-conductance elements. The proposed comb-line antenna minimizes the out-of-phase radiation caused by increases in element width and achieves stable radiation patterns in a broadband. Besides, it is also easy to fabricate. The measured impedance bandwidth is 75 GHz to 80.71 GHz (7.3%). The measured sidelobe level is lower than -19.8 dB across the bandwidth range of 77 GHz to 81 GHz, and the measured peak gain is 14.59 dBi.
引用
收藏
页码：4638 / 4642
页数：5
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