A Novel Triple-Band Bandpass Filter Based on Equilateral Triangle Substrate Integrated Waveguide

Sheng Zhang; Jia-Yu Rao; Jun-Jie Cheng; Jia-Sheng Hong; Fa-Lin Liu

doi:10.1002/mop.31011

A Novel Triple-Band Bandpass Filter Based on Equilateral Triangle Substrate Integrated Waveguide

Sheng Zhang, Jia-Yu Rao, Jun-Jie Cheng, Jia-Sheng Hong, Fa-Lin Liu

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6 Citations (Scopus)

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Abstract

A novel compact triple-mode triple-band bandpass filter (TB-BPF) based on equilateral triangle substrate integrated waveguide is first proposed. The first passband response is achieved by the fundamental modes of the first and third cavities. To obtain the second and third passbands, a new postperturbation method is proposed. And based on it, the perturbed TM101 and TM201 modes of the second cavity can couple with TM102 modes of first and third cavities via inductive window, respectively. By adjusting the width of the inductive window, the second and third passbands can be achieved. Source-load coupling and complementary split-ring resonators (CSRRs) are introduced to produce transmission zeros (TZs). Total eight TZs are obtained, which highly improve the performance of the out-of-band. Finally, a TB-BPF is designed, fabricated, and measured. The simulated and measured results show good agreement.

Original language	English
Pages (from-to)	575–578
Number of pages	4
Journal	Microwave and Optical Technology Letters
Volume	60
Issue number	3
Early online date	5 Feb 2018
DOIs	https://doi.org/10.1002/mop.31011
Publication status	Published - Mar 2018

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This is the peer reviewed version of the following article: Zhang S, Rao JY, Cheng JJ, Hong JS, Liu FL. A novel triple-band bandpass filter based on equilateral triangle substrate integrated waveguide. Microw Opt Technol Lett. 2018;60:575–578, which has been published in final form at https://doi.org/10.1002/mop.31011. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
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title = "A Novel Triple-Band Bandpass Filter Based on Equilateral Triangle Substrate Integrated Waveguide",

abstract = "A novel compact triple-mode triple-band bandpass filter (TB-BPF) based on equilateral triangle substrate integrated waveguide is first proposed. The first passband response is achieved by the fundamental modes of the first and third cavities. To obtain the second and third passbands, a new postperturbation method is proposed. And based on it, the perturbed TM101 and TM201 modes of the second cavity can couple with TM102 modes of first and third cavities via inductive window, respectively. By adjusting the width of the inductive window, the second and third passbands can be achieved. Source-load coupling and complementary split-ring resonators (CSRRs) are introduced to produce transmission zeros (TZs). Total eight TZs are obtained, which highly improve the performance of the out-of-band. Finally, a TB-BPF is designed, fabricated, and measured. The simulated and measured results show good agreement.",

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AU - Liu, Fa-Lin

PY - 2018/3

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AB - A novel compact triple-mode triple-band bandpass filter (TB-BPF) based on equilateral triangle substrate integrated waveguide is first proposed. The first passband response is achieved by the fundamental modes of the first and third cavities. To obtain the second and third passbands, a new postperturbation method is proposed. And based on it, the perturbed TM101 and TM201 modes of the second cavity can couple with TM102 modes of first and third cavities via inductive window, respectively. By adjusting the width of the inductive window, the second and third passbands can be achieved. Source-load coupling and complementary split-ring resonators (CSRRs) are introduced to produce transmission zeros (TZs). Total eight TZs are obtained, which highly improve the performance of the out-of-band. Finally, a TB-BPF is designed, fabricated, and measured. The simulated and measured results show good agreement.

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A Novel Triple-Band Bandpass Filter Based on Equilateral Triangle Substrate Integrated Waveguide

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