High Isolation Substrate Integrated Waveguide Diplexer with Flexible Transmission Zeros

Fei Cheng; Chao Gu; Bing Zhang; Yang Yang; Kama Huang

doi:10.1109/LMWC.2020.3025698

High Isolation Substrate Integrated Waveguide Diplexer with Flexible Transmission Zeros

Fei Cheng^*, Chao Gu, Bing Zhang, Yang Yang, Kama Huang

^*Corresponding author for this work

Queen's University Belfast

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

144 Downloads (Pure)

Abstract

This letter presents a high isolation substrate integrated waveguide (SIW) diplexer using dual-mode resonators. Each dual-mode SIW resonator can generate one transmission pole (TP) and one transmission zero (TZ) for the channel filter. The frequencies of the TZs can be easily controlled by the perturbation vias. One channel filter's two TZs' frequencies are designed to cover the other channel filter's passband. Thus, high isolation performance is achieved. The proposed diplexer is designed and fabricated with lower and upper channels centered at 8.04 and 9.07 GHz, respectively. Simulated and measured results are in good agreement for the two channels with better than 49/53-dB channel isolation.

Original language	English
Pages (from-to)	1029-1032
Number of pages	4
Journal	IEEE Microwave and Wireless Components Letters
Volume	30
Issue number	11
Early online date	01 Oct 2020
DOIs	https://doi.org/10.1109/LMWC.2020.3025698
Publication status	Early online date - 01 Oct 2020

Bibliographical note

Funding Information:
Manuscript received June 29, 2020; revised August 24, 2020; accepted September 18, 2020. Date of publication October 1, 2020; date of current version November 6, 2020. This work was supported in part by the National Natural Science Foundation of China under Grant 61801317 and in part by the Fundamental Research Funds for the Central Universities. (Corresponding author: Yang Yang.) Fei Cheng, Bing Zhang, Yang Yang, and Kama Huang are with the College of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China (e-mail: chengfei@scu.edu.cn; yyang@scu.edu.cn).

Publisher Copyright:
© 2001-2012 IEEE.

Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.

Keywords

Diplexer
dual-mode
high isolation
substrate integrated waveguide (SIW)

ASJC Scopus subject areas

Condensed Matter Physics
Electrical and Electronic Engineering

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High Isolation Substrate Integrated Waveguide Diplexer With Flexible Transmission Zeros
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Cite this

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title = "High Isolation Substrate Integrated Waveguide Diplexer with Flexible Transmission Zeros",

abstract = "This letter presents a high isolation substrate integrated waveguide (SIW) diplexer using dual-mode resonators. Each dual-mode SIW resonator can generate one transmission pole (TP) and one transmission zero (TZ) for the channel filter. The frequencies of the TZs can be easily controlled by the perturbation vias. One channel filter's two TZs' frequencies are designed to cover the other channel filter's passband. Thus, high isolation performance is achieved. The proposed diplexer is designed and fabricated with lower and upper channels centered at 8.04 and 9.07 GHz, respectively. Simulated and measured results are in good agreement for the two channels with better than 49/53-dB channel isolation.",

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N1 - Funding Information: Manuscript received June 29, 2020; revised August 24, 2020; accepted September 18, 2020. Date of publication October 1, 2020; date of current version November 6, 2020. This work was supported in part by the National Natural Science Foundation of China under Grant 61801317 and in part by the Fundamental Research Funds for the Central Universities. (Corresponding author: Yang Yang.) Fei Cheng, Bing Zhang, Yang Yang, and Kama Huang are with the College of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China (e-mail: chengfei@scu.edu.cn; yyang@scu.edu.cn). Publisher Copyright: © 2001-2012 IEEE. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2020/10/1

Y1 - 2020/10/1

N2 - This letter presents a high isolation substrate integrated waveguide (SIW) diplexer using dual-mode resonators. Each dual-mode SIW resonator can generate one transmission pole (TP) and one transmission zero (TZ) for the channel filter. The frequencies of the TZs can be easily controlled by the perturbation vias. One channel filter's two TZs' frequencies are designed to cover the other channel filter's passband. Thus, high isolation performance is achieved. The proposed diplexer is designed and fabricated with lower and upper channels centered at 8.04 and 9.07 GHz, respectively. Simulated and measured results are in good agreement for the two channels with better than 49/53-dB channel isolation.

AB - This letter presents a high isolation substrate integrated waveguide (SIW) diplexer using dual-mode resonators. Each dual-mode SIW resonator can generate one transmission pole (TP) and one transmission zero (TZ) for the channel filter. The frequencies of the TZs can be easily controlled by the perturbation vias. One channel filter's two TZs' frequencies are designed to cover the other channel filter's passband. Thus, high isolation performance is achieved. The proposed diplexer is designed and fabricated with lower and upper channels centered at 8.04 and 9.07 GHz, respectively. Simulated and measured results are in good agreement for the two channels with better than 49/53-dB channel isolation.

KW - Diplexer

KW - dual-mode

KW - high isolation

KW - substrate integrated waveguide (SIW)

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DO - 10.1109/LMWC.2020.3025698

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EP - 1032

JO - IEEE Microwave and Wireless Components Letters

JF - IEEE Microwave and Wireless Components Letters

SN - 1531-1309

IS - 11

ER -

High Isolation Substrate Integrated Waveguide Diplexer with Flexible Transmission Zeros

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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