Compact Wide-Stopband QMSIW-Based BPF for X-Band Applications

被引：0

作者：

Medda, Amrita ^{[1
]}

Azad, Amit R. ^{[2
]}

Srivastava, Gunjan ^{[3
]}

Mohan, Akhilesh ^{[4
]}

Sinha, Manoranjan ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Aerosp Engn, Kharagpur, India

[2] Indian Inst Informat Technol, Dept Elect & Commun Engn, Kalyani, India

[3] Graph Era Deemed Univ, Dept Elect & Commun Engn, Dehra Dun, India

[4] Indian Inst Technol Roorkee, Dept Elect & Commun Engn, Roorkee, India

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2024年 / 66卷 / 11期

关键词：

bandpass filter; quarter mode SIW (QMSIW); substrate integrated waveguide; wide stopband; INTEGRATED WAVE-GUIDE; FILTER; SIW;

D O I：

10.1002/mop.70018

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 novel and compact two-pole quarter mode substrate integrated waveguide (QMSIW) based bandpass filter with ultra-wide stopband characteristics (rejection level > 20 dB, up to 4.05f(0), where f(0) is the center frequency of the bandpass filter) is designed and developed in this paper. The designed second-order filter comprises of two circular QMSIW cavity resonators. The filter is designed using the dominant TM010 mode of the circular SIW cavity. The TM010 modes of cavities are coupled through the arc-shaped slot etched in the middle layer. To verify the present design methodology, a second-order bandpass filter is fabricated and its characteristics are measured. The designed bandpass filter shows outstanding performance in terms of good fractional bandwidth of 14.45%, lower insertion loss of 2 dB and wider stopband behavior (rejection better than 20 dB up to 4.05f(0)) in a given footprint. The experimental results of the filter matches well the EM-simulated ones.

引用

页数：6

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