Multi-Layer PCB Bow-Tie Antenna Array for (77-81) GHz Radar Applications

被引：26
作者：
Mosalanejad, Mohammad [1 ,2 ]
Ocket, Ilja [1 ,2 ]
Soens, Charlotte [2 ]
Vandenbosch, Guy A. E. [1 ]
机构：
[1] Katholieke Univ Leuven, Dept Elect Engn ESAT, B-3001 Leuven, Belgium
[2] Interuniv Microelect Ctr IMEC, B-3001 Leuven, Belgium
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2020年 / 68卷 / 03期
关键词：
77-81; GHz; cavity-backed antenna; multilayer PCB; radar applications; MIMO RADAR; WAVE; BEAM;
D O I：
10.1109/TAP.2019.2949723
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 article, a new wideband cavity-backed bow-tie microstrip antenna is presented for short-range 77-81 GHz radar applications. The design is based on a subarray consisting of two single elements. Each element consists of a multilayer bow-tie patch antenna surrounded by a metallic cavity to suppress the surface waves and parallel plate modes. The subarray elements are fed through a laminated waveguide with 180 degrees phase shift. An eight-layer build-up and a new advanced multilayer PCB technology, the so-called any-layer PCB technology, is used for the fabrication. The performance of this antenna has been verified by both simulations and measurements. A bandwidth of more than 8% is achieved. The gain is 7.9 dBi, and the radiation efficiency is 70% at 79 GHz. Beam widths of 84 degrees in the E-plane and 48 degrees in the H-plane are obtained, which are compatible with radar requirements for short-range applications.
引用
收藏
页码：2379 / 2386
页数：8
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