A Substrate Integrated Gap Waveguide Based Wideband 3-dB Coupler for 5G Applications

Dongya Shen; Ke Wang; Xiupu Zhang

doi:10.1109/ACCESS.2018.2879438

IEEE Access (Jan 2018)

A Substrate Integrated Gap Waveguide Based Wideband 3-dB Coupler for 5G Applications

Dongya Shen,
Ke Wang,
Xiupu Zhang

Affiliations

Dongya Shen: Yunnan Provincial Engineering Laboratory of Cloud Wireless Access & Heterogeneous Networks, School of Information Science and Engineering, Yunnan University, Kunming, China
Ke Wang: Yunnan Provincial Engineering Laboratory of Cloud Wireless Access & Heterogeneous Networks, School of Information Science and Engineering, Yunnan University, Kunming, China
Xiupu Zhang: ORCiD; Yunnan Provincial Engineering Laboratory of Cloud Wireless Access & Heterogeneous Networks, School of Information Science and Engineering, Yunnan University, Kunming, China

DOI: https://doi.org/10.1109/ACCESS.2018.2879438
Journal volume & issue: Vol. 6
pp. 66798 – 66806

Abstract

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A wideband 3-dB coupler using substrate integrated gap waveguide (SIGW) is proposed based on the principle of the branch-line coupler structure. The SIGW coupler design is comprehensively studied. It is found that SIGW conducting ridge vias play a significant role and have a strong impact on the cavity resonance, passband, and impedance matching. A prototype of the proposed SIGW coupler is fabricated and tested, and the measured agrees well with the simulated. The coupler, better than the reported, has a passband of ~5 GHz from 23.59 to 29 GHz with the isolation above 20 dB, covering the 24.25–27.5-GHz and 27.5–28.5-GHz frequency bands of 5G.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

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