Quarter-Mode Cavity Filters in Substrate Integrated Waveguide Technology
Quarter-Mode Cavity Filters in Substrate Integrated Waveguide Technology
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DOI：
10.1109/tmtt.2016.2577690
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发表时间：
2016-06
影响因子：
4.3
通讯作者：
S. Moscato;C. Tomassoni;M. Bozzi;L. Perregrini
中科院分区：
文献类型：
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作者：
S. Moscato;C. Tomassoni;M. Bozzi;L. Perregrini
对基片集成波导(SIW)技术中的四分之一模滤波器进行了系统的研究。这类滤波器特别方便，因为它结合了SIW结构的特点和尺寸缩小的改进。本文在深入分析了四分之一模SIW腔的基础上，提出了设计四分之一模SIW滤波器的不同耦合机制和馈电技术：侧向耦合和角向耦合，并着重分析了这两种技术的优缺点。介绍了一种新颖的滤波器拓扑结构，给出了简单滤波器的设计和实验验证，并将其推广到高阶滤波器结构。描述并演示了引入传输零点的技术。此外，四分之一模SIW腔和共面波导谐振器的结合使滤波器阶数提高到更高的阶数，从而实现了准椭圆滤波器。
This paper presents a systematic investigation of quarter-mode filters in substrate integrated waveguide (SIW) technology. This class of filters is particularly convenient because it combines the features of SIW structures with the improvement of size reduction. After a thorough analysis of the quarter-mode SIW cavity, this paper presents different coupling mechanisms and feeding techniques for the design of quarter-mode SIW filters: side coupling and corner coupling are considered, highlighting the advantages and disadvantages of the two techniques. Novel filter topologies are introduced, with the design and experimental verification of simple filters and their extension to higher order filter structures. Techniques to introduce transmission zeros are described and demonstrated. Moreover, the combination of quarter-mode SIW cavities and coplanar waveguide resonators leads to increasing the filter order to higher order and allows the implementation of quasi-elliptic filters.