Dual circular polarization 2 × 2 slot array antenna based on printed ridge gap waveguide technology in Ka band

被引：0

作者：

Jafari Chashmi, Mohsen ^{[1
]}

Rezaei, Pejman ^{[1
]}

Haghparast, Amir Hossein ^{[1
]}

Zarifi, Davoud ^{[2
]}

机构：

[1] Electrical and Computer Engineering Faculty, Semnan University, Semnan, Iran

[2] Electrical and Computer Engineering Faculty, Kashan University, Isfahan, Iran

来源：

AEU - International Journal of Electronics and Communications | 2022年 / 157卷

关键词：

5G mobile communication systems - Antenna arrays - Antenna feeders - Directional couplers - Microstrip antennas - Microwave antennas - Ridge waveguides - Slot antennas;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In this paper a novel multi-layer slot array antenna based on printed ridge gap waveguide (PRGW) technology with dual circular polarization (CP) at Ka band is proposed. This antenna consists of five layers, two dielectric substrates as a transition from PRGW to coax line and a branch line coupler (BLC) as an antenna feeding network, and three metal layers as a coupling slot, 2 × 2-element slot array antenna and ground layer. Feeding network has two individual ports consists of a BLC that based on PRGW implemented. The operating frequency band of the antenna for S11 2 at 28 GHz and total efficiency of it is better than 80 %. Two individual ports of the proposed antenna provide two isolated left- and right-hand CP with axial ratio (AR) less than 2 dB for each port in aforementioned frequency range, and the measured results indicated that the antenna can provide isolation more than 15 dB between two input ports. © 2022 Elsevier GmbH

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