High-Gain 100 GHz Antenna Array Based on Mixed PCB and Machining Technique

被引：15
|
作者：
Feng, Wenjie [1 ,2 ]
Ni, Xiaoyu [2 ]
Shen, Ruilian [2 ]
Wang, Hui [2 ]
Qian, Zhiyu [3 ]
Shi, Yongrong [3 ]
机构：
[1] South China Univ Technol, Guangdong Prov Key Lab Millimeter Wave & Terahert, Guangzhou 510006, Peoples R China
[2] Nanjing Univ Sci & Technol, Dept Commun Engn, Nanjing 210094, Peoples R China
[3] Nanjing Univ Aeronaut & Astronaut, Key Lab Dynam Cognit Syst Electromagnet Spectrum, Minist Ind & Informat Technol, Nanjing 210016, Peoples R China
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2022年 / 70卷 / 08期
基金：
中国国家自然科学基金;
关键词：
High efficiency; high gain; mixed printed circuit broad (PCB) and machining technique; slot-enhanced antenna array; PATCH ARRAY; BAND;
D O I：
10.1109/TAP.2022.3164208
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 W-band 8 x 8 slot-enhanced antenna array with high gain and high aperture efficiency is proposed based on the mixed printed circuit board (PCB) and machining technique. The antenna array consists of 16 2 x 2 antenna subarrays. The substrate-integrated waveguide (SIW) cavity is used to feed the antenna subarray, where electromagnetic fields distribute in the TE220 mode. The SIW cavity is fabricated by the PCB technology for low cost, low profile, and lightweight. To reduce the loss of the feeding network, a constant-amplitude in- phase power divider based on ridge gap waveguide (RGW) is adopted to feed the SIW subarray using the machining technique. Besides, the standard WR-10 waveguide to the RGW transition structure is designed for measurement. The entire antenna array is integrated and packaged in a metal box. The measured results show that the impedance bandwidth of the antenna array is 97.8-107 GHz with a reflection coefficient lower than -10 dB. Within the impedance bandwidth, the antenna array gain is higher than 24.0 dBi, and the peak gain is 26.5 dBi. Moreover, an aperture efficiency of the antenna is larger than 75%.
引用
收藏
页码：7246 / 7251
页数：6
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