Low-Profile Dual-Band Filtering Antenna Using Common Planar Cavity

被引:52
作者
Dhwaj, Kirti [1 ]
Tian, Haozhan [1 ]
Itoh, Tatsuo [1 ]
机构
[1] Univ Calif Los Angeles, Dept Elect & Comp Engn, Los Angeles, CA 90095 USA
来源
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2018年 / 17卷 / 06期
关键词
Cavity-backed slot antenna; dual-mode-rectangular cavity; filtering antenna; resonator; substrate integrated wave-guide (SIW); DESIGN;
D O I
10.1109/LAWP.2018.2832631
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 dual-hand filtering antenna with orthogonal polarizations in the two bands is presented. The antenna is based on the single-layer substrate integrated waveguide (SIW) technology. A dual-mode rectangular SIW cavity with two orthogonal modes functions as a common high-Q resonator, leading to the compact size of the proposed design. The dual-mode cavity is coupled to two orthogonally polarized slot-loaded SIW cavities for radiation. The low-profile antenna shows broadside peak gain of 5.94 dBi at low-band operating frequency 44.3 GHz with a 3 dB bandwidth of 2.4%, while it shows 6.45 dBi gain at 5.02 GHz with 3 dB bandwidth of 6% for the high band.
引用
收藏
页码:1081 / 1084
页数:4
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