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

A Substrate Integrated Gap Waveguide Based Wideband 3-dB Coupler for 5G Applications
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适用于 5G 应用的基于基板集成间隙波导的宽带 3dB 耦合器

DOI:
10.1109/access.2018.2879438
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发表时间:
2018
期刊:
影响因子:
3.9
通讯作者:
Xiupu Zhang
Xiupu Zhang
中科院分区:
计算机科学3区
文献类型:
--
作者:
Dongya Shen;Ke Wang;Xiupu Zhang

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基于支线耦合器结构的原理,提出了一种使用衬底集成间隙波导(SIGW)的宽带3dB耦合器。对SIGW耦合器的设计进行了全面的研究。研究发现,SIGW 导电脊形过孔起着重要作用,对腔体谐振、通带和阻抗匹配有很大影响。所提出的 SIGW 耦合器的原型已制造并测试,测量结果与模拟结果非常吻合。该耦合器比报道的要好,通带范围为 23.59 至 29 GHz 约 5 GHz,隔离度高于 20 dB,覆盖 5G 的 24.25-27.5-GHz 和 27.5-28.5-GHz 频段。
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.
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