Wideband and Highly Selective BandPass Filter Using Substrate Integrated Waveguide Technology for Ku-Band Applications

被引：0
|
作者：
Soundarya, Gopalakrishnan [1 ,2 ]
Gunavathi, Nagarajan [1 ]
机构：
[1] Natl Inst Technol, Dept ECE, Trichy, Tamil Nadu, India
[2] Dr Mahalingam Coll Engn & Technol, Dept ECE, Coimbatore, Tamilnadu, India
来源：
IETE JOURNAL OF RESEARCH | 2024年 / 70卷 / 04期
关键词：
Bandpass filter; High selectivity; Inverted tuning fork-shaped DGS; Ku band; Substrate integrated waveguide; Wide passband; SIW; DESIGN;
D O I：
10.1080/03772063.2023.2273312
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A new compact design of bandpass filter using substrate integrated waveguide (SIW) is proposed and analyzed in this paper. It offers good in-band return loss, low insertion loss, wide passband, and high stopband attenuation. The filtering response is achieved by loading a couple of inverted tuning fork-shaped defected ground structures (DGS) on the bottom of the SIW cavity. DGS is utilized to enhance the upper stopband performance. To validate, the filter is fabricated using Rogers RT/Duroid 5880 with 0.508 mm thickness and tested. The filter has a center frequency of 15.44 GHz with 19% fractional bandwidth (FBW). The return loss is more than 20 dB and the insertion loss is about 1.2 dB. It finds its application in Ku band satellite communication.
引用
收藏
页码：3476 / 3482
页数：7
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