Novel hybrid coupling structure for HMSIW resonators and its application to bandpass filter

2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2015-07-01 DOI:10.1109/IMWS-AMP.2015.7324960

H. Cao, Shuai Shang, S. He, Hang Xu, Junjie Liu, Liqiang Yang

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引用次数: 1

Abstract

In this paper, a novel hybrid coupling structure including a magnetic coupling iris and an electric coupling etched bowtie-shape structure was studied in detail and used to improve the coupling of the two adjacent resonant cavities. The coupling effect provided by the hybrid structure can be accurately modified and optimized by tuning the dimensions of the coupling structure. It was also shown that the electric scatter of the proposed structure allows the implementation of a forward-wave passband propagating below the characteristic cutoff frequency of the waveguide. To demonstrate the validity of the design strategies, a compact 2.4 GHz bandpass HMSIW filter using bowtie-shape coupling structure with sharp selectivity is simulated, fabricated and measured. The dimension of this filter is as small as 0.4λg×0.16λg, where λg is the guide wavelength at the center frequency. The measured results are in good agreement with the simulation.

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HMSIW谐振器的新型杂化耦合结构及其在带通滤波器中的应用

本文详细研究了一种新型的混合耦合结构，该结构包括磁耦合虹膜和电耦合蚀刻领结结构，并用于改善相邻两个谐振腔的耦合。通过调整耦合结构的尺寸，可以精确地修正和优化混合结构提供的耦合效果。结果还表明，所提出的结构的电散射允许在波导的特征截止频率以下实现前向波通带传播。为了验证设计策略的有效性，仿真、制作和测量了采用领结型耦合结构、具有高选择性的紧凑2.4 GHz带通HMSIW滤波器。该滤波器的尺寸小至0.4λg×0.16λg，其中λg为中心频率处的波导波长。实测结果与仿真结果吻合较好。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)

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