Multilayer Cross-Coupled SIW Filter With Next Harmonic Suppression

被引：1

作者：

Khan, Arani Ali ^{[1
]}

Gupta, Ajay ^{[1
]}

Mandal, Mrinal Kanti ^{[2
]}

机构：

[1] Indian Inst Technol, Dept Elect Engn, Jodhpur, Rajasthan, India

[2] Indian Inst Technol, Dept Elect & Elect Commun Engn, Kharagpur, W Bengal, India

来源：

2022 IEEE MICROWAVES, ANTENNAS, AND PROPAGATION CONFERENCE, MAPCON | 2022年

关键词：

Bandpass filter (BPF); cross coupling; substrate integrated waveguide (SIW); transmission zero (TZ); DESIGN;

D O I：

10.1109/MAPCON56011.2022.10047340

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：

In this paper, substrate integrated waveguide (SIW) filters with multilayer configuration are presented. Such configurations reduce circuit footprint area without compromising the passband loss. Here it is shown that a metallic post can provide magnetic as well as electric coupling. Further, it is shown that proper placement of the slots, used here to obtain coupling between two adjacent layers, can provide next harmonic suppression. Finally, a four-pole prototype is designed which provides symmetrically placed transmission zeros. The filter offers a measured insertion loss of 1.55 dB at f(0) = 2.20 GHz. The stopband rejections are at least 40 dB at (f(0) +/- 0.2) GHz and the next harmonic is suppressed at least by 28 dB.

引用

页码：68 / 73

页数：6

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