Low-Profile Millimeter-Wave SIW Cavity-Backed Dual-Band Circularly Polarized Antenna

被引：85
|
作者：
Wu, Qi [1 ,2 ]
Yin, Jiexi [1 ,2 ]
Yu, Chen [1 ,2 ]
Wang, Haiming [1 ,2 ]
Hong, Wei [1 ,2 ]
机构：
[1] Southeast Univ, State Key Lab Millimeter Waves, Nanjing 210096, Jiangsu, Peoples R China
[2] Southeast Univ, Sch Informat Sci & Engn, Nanjing 210096, Jiangsu, Peoples R China
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2017年 / 65卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Cavity-backed antennas; differential evolution (DE); dual-band circular polarization (CP); dual-band matching; millimeter-wave; substrate-integrated waveguide (SIW); ANNULAR SLOT ANTENNA; RING-SLOT; DESIGN;
D O I：
10.1109/TAP.2017.2758165
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 single-fed low-profile millimeter-wave substrate-integrated waveguide (SIW) cavity-backed slot antenna for dual-band circular polarization (CP) applications is proposed. First, by employing two annular exponential slots carved on the surface of a circular SIW cavity, dual-band CP radiation is achieved. Two different modes, that is, the cavity mode and the surface mode, separately modulated by the cavity field distribution and the surface current, are investigated. They are utilized to achieve the dual-band CP radiation. Next, a two-order matching circuit using inductor windows is introduced to achieve dual-band matching at the low-profile antenna design with the help of the differential evolution method. Finally, for the dual-band CP application at 37.5 and 47.8 GHz, an antenna prototype is fabricated and its performance is evaluated. Simulation and measurement results agree very well.
引用
收藏
页码：7310 / 7315
页数：6
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