W波段45°线极化天线阵设计

doi:10.3969/j.issn.0372-2112.2019.06.027

电子学报 ›› 2019, Vol. 47 ›› Issue (6): 1378-1383.DOI: 10.3969/j.issn.0372-2112.2019.06.027

W波段45°线极化天线阵设计

金良¹, 葛俊祥^1,2, 汪洁¹

1. 南京信息工程大学电子与信息工程学院, 江苏南京 210044;
2. 南京信息工程大学雷达技术研究所, 江苏南京 210044

收稿日期:2017-09-13 修回日期:2018-05-20 出版日期:2019-06-25
- 作者简介:
- 金良男,1992年8月生于江苏连云港,现为南京信息工程大学电子与信息工程学院硕士研究生.主要研究方向:天线理论与设计.E-mail:jwblyg@163.com;葛俊祥 男,1960年8月生于江苏南京,现为南京信息工程大学教授,博士生导师.主要研究方向为电磁场理论、微波毫米波理论与技术、天线理论与技术、雷达系统等.E-mail:jxge@nuist.edu.cn;汪洁男,1988年8月生于河南商丘,现为南京信息工程大学大气科学学院博士研究生.主要研究方向:太赫兹大气传输,天线技术.E-mail:1057798108@qq.com
- 基金资助:
- 国家自然科学基金 (No.61671249）

Design of 45-Degree Linearly Polarized Antenna Array at W Band

JIN Liang¹, GE Jun-xiang^1,2, WANG Jie¹

1. College of Electronic and Information Engineering, Nanjing University of Information Science & Technology, Nanjing, Jiangsu 210044, China;
2. Institute of Radar Technology of Nanjing University of Information Science & Technology, Nanjing, Jiangsu 210044, China

Received:2017-09-13 Revised:2018-05-20 Online:2019-06-25 Published:2019-06-25
- Supported by:
- National Natural Science Foundation of China (No.61671249)

摘要/Abstract

摘要： 提出了一种带反射相消单元的W波段45度线极化微带贴片天线阵列.单列串馈天线阵采用泰勒加权结合反射相消单元实现了25dB的旁瓣抑制，通过添加贴边矩形槽改善了主瓣内的交叉极化.一阶十路功分器通过T型结取代一般的四分之一波长匹配段实现4.5倍的不等功分比.仿真与实测结果表明：组阵后的天线工作在75.7GHz~77.6GHz，水平和垂直方位3dB波束宽度可覆盖正负45度，该宽度内交叉极化比均高于18dB.天线增益达24dB，旁瓣抑制度达20dB.该天线形式可用于汽车防撞雷达并提高其抗干扰能力.

关键词: W波段, 45°线极化, 泰勒加权, 交叉极化, 汽车防撞雷达

Abstract: A 45-degree linearly polarized microstrip antenna array with reflection-canceling unit is proposed at W band.The single-row series-fed antenna array with sidelobe suppression of 25dB is designed by the Taylor-weighted,combined with reflection-canceling unit.Meanwhile the cross polarization is improved in the main lobe by adding the rectangular welt groove.The power divider with first order and ten ways replaces quarter wavelength transmission lines with the T-shaped structure junction,which achieves the power division ratio of 4.5 times.The simulation and measure results show that the antenna works from 75.7GHz to 77.6GHz by arraying.The horizontal and vertical azimuth for 3dB beam width can cover from-5 degrees to 5 degrees,where the cross polarization ratio is all higer 18dB.The gain of the antenna is 24dB and the sidelobe suppression is up to 20dB.The antenna can be used in the vehicle anti-collision radar and further improve whose anti-jamming capability.

Key words: w band, 45-degree linearly polarized, taylor-weighted, cross polarization, vehicle anti-collision radar

中图分类号:

TN821

金良, 葛俊祥, 汪洁. W波段45°线极化天线阵设计[J]. 电子学报, 2019, 47(6): 1378-1383.

JIN Liang, GE Jun-xiang, WANG Jie . Design of 45-Degree Linearly Polarized Antenna Array at W Band[J]. Acta Electronica Sinica, 2019, 47(6): 1378-1383.

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W波段45°线极化天线阵设计

Design of 45-Degree Linearly Polarized Antenna Array at W Band

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