Compact Diplexer With Wide Stopband Based on Stacked Dual-Mode and Single-Mode SIW Cavities

被引：0

作者：

Zhou, Ziyu ^{[1
]}

Dong, Gang ^{[1
]}

Lei, Xinqing ^{[1
]}

Zhu, Zhangming ^{[1
]}

机构：

[1] Xidian Univ, Sch Microelect, Xian 710071, Peoples R China

来源：

IEEE MICROWAVE AND WIRELESS TECHNOLOGY LETTERS | 2025年 / 35卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Couplings; Substrates; Passband; Nonhomogeneous media; Bandwidth; Wireless communication; Filters; Prototypes; Magnetic fields; Metals; Diplexer; intrinsic modes suppression technique; miniaturization; multilayer; substrate-integrated waveguide (SIW); wide stopband; WAVE-GUIDE DIPLEXER;

D O I：

10.1109/LMWT.2025.3562591

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：

This letter proposes a compact diplexer with a wide stopband based on stacked substrate-integrated waveguide (SIW) cavities. By vertically stacking the common dual-mode resonator (DMR) with multiple single-mode resonators (SMRs), the design achieves flexible bandwidth control for both channels while maintaining compactness. The proposed diplexer achieves enhanced wide-stopband performance through strategic suppression of TE102, TE103/TE301, TE302, and TE303 modes in SMRs. A third-order diplexer is fabricated with a size of 1.02 lambda(2)(g), extending the stopband up to 3.57 f(1) with a better than 20-dB rejection level.

引用

页码：977 / 980

页数：4

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