Dual-Band Single-Layer Slot Array Antenna Fed by K/Ka-Band Dual-Mode Resonators in Gap Waveguide Technology

被引：35
作者：
Ferrando-Rocher, Miguel [1 ]
Herranz-Herruzo, Jose, I [1 ]
Valero-Nogueira, Alejandro [1 ]
Baquero-Escudero, Mariano [1 ]
机构：
[1] Univ Politecn Valencia, Inst Telecomunicac & Aplicac Multimedia, Valencia 46022, Spain
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2021年 / 20卷 / 03期
关键词：
Array; dual-band antenna; gap waveguide (GW); K-band; Ka-band; SATCOM; shared-aperture;
D O I：
10.1109/LAWP.2021.3054408
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：
This letter presents a 4 x 4 single-layer dual-band array antenna operating in the K- and Ka-band using gap waveguide (GW) technology. Radiating elements consist of I-shaped slots located on the top plate of the antenna and backed by a novel coaxial cavity with the dual-frequency operation. The antenna presents two ports, one for each band, and radiates a directive far field pattern with linear polarization. A single-layer wideband corporate-feed network is used to excite the cavities. In addition, a diplexer is integrated as part of the network to separate both working bands. Experimental results show impedance and radiation pattern bandwidths larger than 2 GHz in both bands.
引用
收藏
页码：416 / 420
页数：5
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