Compact 3D-Printed Bandpass Filters Using Coaxial and Dual-mode Ridged-Waveguide Resonators

Kunchen Zhao; Dimitra Psychogiou

doi:10.1109/IMS37964.2023.10187930

Compact 3D-Printed Bandpass Filters Using Coaxial and Dual-mode Ridged-Waveguide Resonators

Kunchen Zhao
, Dimitra Psychogiou

School of Engineering and Architecture

University of Colorado Boulder

Research output: Chapter in Book/Report/Conference proceedings › Conference proceeding › peer-review

Abstract

This paper presents a new integration concept for 3D bandpass filters (BPFs) where coaxial resonators and dual-mode ridged waveguide resonators are combined within the same volume for miniaturization and RF performance enhancement. Size compactness is achieved by: i) two types of miniaturized resonators namely a coaxial and a dual-mode ridge waveguide resonator and ii) monolithic integration using stereolithography apparatus (SLA) 3D printing. A connectorized integration concept is also employed to facilitate the inter-connection with other SMA-probed RF devices. RF performance is enhanced through the combination of the two resonator types where the dual-mode resonator generates a transmission zero (TZ) close to the passband. A design process using coupled-resonator synthesis and eigenmode analysis is provided. The concept is experimentally validated at 4.9 GHz through the design, manufacturing, and testing of a BPF prototype with 3 dB fractional bandwidth of 7.3%, in-band insertion loss of 0.31 dB and Qeff of 1210.

Original language	English
Title of host publication	2023 IEEE/MTT-S International Microwave Symposium, IMS 2023
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	744-747
Number of pages	4
ISBN (Electronic)	9798350347647
DOIs	https://doi.org/10.1109/IMS37964.2023.10187930
Publication status	Published - 2023
Event	2023 IEEE/MTT-S International Microwave Symposium, IMS 2023 - San Diego, United States Duration: 11 Jun 2023 → 16 Jun 2023

Publication series

Name	IEEE MTT-S International Microwave Symposium Digest
Volume	2023-June
ISSN (Print)	0149-645X

Conference

Conference	2023 IEEE/MTT-S International Microwave Symposium, IMS 2023
Country/Territory	United States
City	San Diego
Period	11/06/23 → 16/06/23

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 9 Industry, Innovation, and Infrastructure

Keywords

3D printing
bandpass filters (BPFs)
coaxial filters
high-Q resonators
ridge-waveguide filters

Access to Document

10.1109/IMS37964.2023.10187930

Cite this

Zhao, K., & Psychogiou, D. (2023). Compact 3D-Printed Bandpass Filters Using Coaxial and Dual-mode Ridged-Waveguide Resonators. In 2023 IEEE/MTT-S International Microwave Symposium, IMS 2023 (pp. 744-747). (IEEE MTT-S International Microwave Symposium Digest; Vol. 2023-June). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IMS37964.2023.10187930

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title = "Compact 3D-Printed Bandpass Filters Using Coaxial and Dual-mode Ridged-Waveguide Resonators",

abstract = "This paper presents a new integration concept for 3D bandpass filters (BPFs) where coaxial resonators and dual-mode ridged waveguide resonators are combined within the same volume for miniaturization and RF performance enhancement. Size compactness is achieved by: i) two types of miniaturized resonators namely a coaxial and a dual-mode ridge waveguide resonator and ii) monolithic integration using stereolithography apparatus (SLA) 3D printing. A connectorized integration concept is also employed to facilitate the inter-connection with other SMA-probed RF devices. RF performance is enhanced through the combination of the two resonator types where the dual-mode resonator generates a transmission zero (TZ) close to the passband. A design process using coupled-resonator synthesis and eigenmode analysis is provided. The concept is experimentally validated at 4.9 GHz through the design, manufacturing, and testing of a BPF prototype with 3 dB fractional bandwidth of 7.3\%, in-band insertion loss of 0.31 dB and Qeff of 1210.",

keywords = "3D printing, bandpass filters (BPFs), coaxial filters, high-Q resonators, ridge-waveguide filters",

author = "Kunchen Zhao and Dimitra Psychogiou",

note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 2023 IEEE/MTT-S International Microwave Symposium, IMS 2023 ; Conference date: 11-06-2023 Through 16-06-2023",

year = "2023",

doi = "10.1109/IMS37964.2023.10187930",

language = "English",

series = "IEEE MTT-S International Microwave Symposium Digest",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "744--747",

booktitle = "2023 IEEE/MTT-S International Microwave Symposium, IMS 2023",

address = "United States",

}

Zhao, K & Psychogiou, D 2023, Compact 3D-Printed Bandpass Filters Using Coaxial and Dual-mode Ridged-Waveguide Resonators. in 2023 IEEE/MTT-S International Microwave Symposium, IMS 2023. IEEE MTT-S International Microwave Symposium Digest, vol. 2023-June, Institute of Electrical and Electronics Engineers Inc., pp. 744-747, 2023 IEEE/MTT-S International Microwave Symposium, IMS 2023, San Diego, United States, 11/06/23. https://doi.org/10.1109/IMS37964.2023.10187930

Compact 3D-Printed Bandpass Filters Using Coaxial and Dual-mode Ridged-Waveguide Resonators. / Zhao, Kunchen; Psychogiou, Dimitra.
2023 IEEE/MTT-S International Microwave Symposium, IMS 2023. Institute of Electrical and Electronics Engineers Inc., 2023. p. 744-747 (IEEE MTT-S International Microwave Symposium Digest; Vol. 2023-June).

Research output: Chapter in Book/Report/Conference proceedings › Conference proceeding › peer-review

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T1 - Compact 3D-Printed Bandpass Filters Using Coaxial and Dual-mode Ridged-Waveguide Resonators

AU - Zhao, Kunchen

AU - Psychogiou, Dimitra

PY - 2023

Y1 - 2023

N2 - This paper presents a new integration concept for 3D bandpass filters (BPFs) where coaxial resonators and dual-mode ridged waveguide resonators are combined within the same volume for miniaturization and RF performance enhancement. Size compactness is achieved by: i) two types of miniaturized resonators namely a coaxial and a dual-mode ridge waveguide resonator and ii) monolithic integration using stereolithography apparatus (SLA) 3D printing. A connectorized integration concept is also employed to facilitate the inter-connection with other SMA-probed RF devices. RF performance is enhanced through the combination of the two resonator types where the dual-mode resonator generates a transmission zero (TZ) close to the passband. A design process using coupled-resonator synthesis and eigenmode analysis is provided. The concept is experimentally validated at 4.9 GHz through the design, manufacturing, and testing of a BPF prototype with 3 dB fractional bandwidth of 7.3%, in-band insertion loss of 0.31 dB and Qeff of 1210.

AB - This paper presents a new integration concept for 3D bandpass filters (BPFs) where coaxial resonators and dual-mode ridged waveguide resonators are combined within the same volume for miniaturization and RF performance enhancement. Size compactness is achieved by: i) two types of miniaturized resonators namely a coaxial and a dual-mode ridge waveguide resonator and ii) monolithic integration using stereolithography apparatus (SLA) 3D printing. A connectorized integration concept is also employed to facilitate the inter-connection with other SMA-probed RF devices. RF performance is enhanced through the combination of the two resonator types where the dual-mode resonator generates a transmission zero (TZ) close to the passband. A design process using coupled-resonator synthesis and eigenmode analysis is provided. The concept is experimentally validated at 4.9 GHz through the design, manufacturing, and testing of a BPF prototype with 3 dB fractional bandwidth of 7.3%, in-band insertion loss of 0.31 dB and Qeff of 1210.

KW - 3D printing

KW - bandpass filters (BPFs)

KW - coaxial filters

KW - high-Q resonators

KW - ridge-waveguide filters

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EP - 747

BT - 2023 IEEE/MTT-S International Microwave Symposium, IMS 2023

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2023 IEEE/MTT-S International Microwave Symposium, IMS 2023

Y2 - 11 June 2023 through 16 June 2023

ER -

Compact 3D-Printed Bandpass Filters Using Coaxial and Dual-mode Ridged-Waveguide Resonators

Abstract

Publication series

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UN SDGs

Keywords

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