A compact SIW bandpass filter using DMS-DGS structures for Ku-band applications

被引：9
|
作者：
Annadurai, Banu Priya [1 ]
Hyder Ali, Umma Habiba [1 ]
机构：
[1] Anna Univ, Dept Elect & Commun Engn, Sri Venkateswara Coll Engn, Sriperumbudur 602117, India
来源：
SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES | 2020年 / 45卷 / 01期
关键词：
Bandpass filter (BPF); defected ground structure (DGS); defected microstrip structure (DMS); substrate integrated waveguide (SIW); Ku-band;
D O I：
10.1007/s12046-020-01485-0
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper presents a design of compact SIW (substrate integrated waveguide) bandpass filter for application in Ku-band Transmit up-convert frequency (i.e., 13.7-14.1 GHz) used for satellite communications. Based on Defected Microstrip Structure-Defected Ground Structure combination (DMS-DGS), this SIW filter structure is designed to improve passband and stopband performance. By merging circular ring slot (CRS) with interdigital DGS, better passband characteristics with sharp stopband attenuation are obtained. To validate the design, the filter is fabricated using Rogers substrate. The size measures 23.8 mm x 10 mm and operates at a center frequency of 13.9 GHz. Measured results of the filter agree well with the simulated results. Also, designed BPF filter has advantage of low insertion loss, better return loss, compact size and high stopband rejection.
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页数：5
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