Summary
2019 Joint International Symposium on Electromagnetic Compatibility and Asia-Pacific International Symposium on Electromagnetic Compatibility, Sapporo
2019
Session Number:ThuAM1A
Session:
Number:ThuAM1A.3
Series Feed Broadband Patch Array Antenna Design for Vehicle Collision Warning Radar System
Kuan-Hsun Wu, Ding-Bing Lin, Chung-Wei Wang, Hsi-Tseng Chou,
pp.-
Publication Date:2016/10/5
Online ISSN:2188-5079
DOI:10.34385/proc.58.ThuAM1A.3
Summary:
In this paper, a 77GHz Vehicle Collision Warning Radar System short-range antenna is proposed. The operating frequency range is 77GHz to 81GHz, which is realized by the two actual substrates of RO4835 and RO3003, respectively. A patch array antenna is used as the basic structure of this system with multilayer board design technique for smaller size. Main beam is not offset by feeding on intermediate position of the array. We introduce two and three vias in parallel as the feeding in this system for enhancing bandwidth by decreasing overall equivalent inductance. The reflection coefficient reaches below -10 dB for automotive radar allocation of the 79GHz frequency band. The antenna gain reaches 14.2dBi, and the radiation efficiency reaches more than 85%.