Compact monolithic SLM 3D-printed filters using pole-generating resonant irises

Lu Qian; Rafael Martinez; Milan Salek; Moataz Attallah; Yi Wang; Michael J. Lancaster

doi:10.23919/EuMC50147.2022.9784337

Compact monolithic SLM 3D-printed filters using pole-generating resonant irises

Lu Qian, Rafael Martinez, Milan Salek, Moataz Attallah, Yi Wang, Michael J. Lancaster

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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Abstract

This paper proposes a new pole-generating resonant iris structure for the design of iris-coupled cavity filters. By replacing the conventional reactive iris with a resonant iris, extra transmission pole can be generated without increasing the number of resonant cavities. This leads to several design advantages: (i) a more compact filter structure; and (ii) ability to realize wide bandwidth and to improve out-of-band rejection. To demonstrate these, a third-order Chebyshev filter is designed and implemented, occupying the same footprint as a second-order filter. To facilitate the formation of the intricate resonant iris structures, the filter was printed monolithically using selective laser melting (SLM) technique. Very good agreement between the measurements and simulations has been achieved.

Original language	English
Title of host publication	2021 51st European Microwave Conference (EuMC)
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	118-121
Number of pages	4
ISBN (Electronic)	9782874870637
ISBN (Print)	9781665447218 (PoD)
DOIs	https://doi.org/10.23919/EuMC50147.2022.9784337
Publication status	Published - 2 Jun 2022
Event	51st European Microwave Conference, EuMC 2021 - London, United Kingdom Duration: 4 Apr 2022 → 6 Apr 2022

Publication series

Name	European Microwave Conference
Publisher	IEEE
ISSN (Print)	2325-0305

Conference

Conference	51st European Microwave Conference, EuMC 2021
Country/Territory	United Kingdom
City	London
Period	4/04/22 → 6/04/22

Bibliographical note

Publisher Copyright:
© 2022 European Microwave Association.

Keywords

3D printing
resonant iris
waveguide filters
wideband

ASJC Scopus subject areas

Computer Networks and Communications
Electrical and Electronic Engineering
Electronic, Optical and Magnetic Materials
Instrumentation

Access to Document

10.23919/EuMC50147.2022.9784337

QianL2022Compact
L. Qian, R. Martinez, M. Salek, M. Attallah, Y. Wang and M. J. Lancaster, "Compact Monolithic SLM 3D-Printed Filters using Pole-Generating Resonant Irises," 2021 51st European Microwave Conference (EuMC), 2022, pp. 118-121, doi: 10.23919/EuMC50147.2022.9784337. IEEE - © 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Accepted author manuscript, 971 KBLicence: Other (please specify with Rights Statement)

Cite this

Qian, L., Martinez, R., Salek, M., Attallah, M., Wang, Y., & Lancaster, M. J. (2022). Compact monolithic SLM 3D-printed filters using pole-generating resonant irises. In 2021 51st European Microwave Conference (EuMC) (pp. 118-121). Article 9784337 (European Microwave Conference). Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.23919/EuMC50147.2022.9784337

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title = "Compact monolithic SLM 3D-printed filters using pole-generating resonant irises",

abstract = "This paper proposes a new pole-generating resonant iris structure for the design of iris-coupled cavity filters. By replacing the conventional reactive iris with a resonant iris, extra transmission pole can be generated without increasing the number of resonant cavities. This leads to several design advantages: (i) a more compact filter structure; and (ii) ability to realize wide bandwidth and to improve out-of-band rejection. To demonstrate these, a third-order Chebyshev filter is designed and implemented, occupying the same footprint as a second-order filter. To facilitate the formation of the intricate resonant iris structures, the filter was printed monolithically using selective laser melting (SLM) technique. Very good agreement between the measurements and simulations has been achieved.",

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author = "Lu Qian and Rafael Martinez and Milan Salek and Moataz Attallah and Yi Wang and Lancaster, {Michael J.}",

note = "Publisher Copyright: {\textcopyright} 2022 European Microwave Association.; 51st European Microwave Conference, EuMC 2021 ; Conference date: 04-04-2022 Through 06-04-2022",

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doi = "10.23919/EuMC50147.2022.9784337",

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Qian, L, Martinez, R, Salek, M , Attallah, M , Wang, Y & Lancaster, MJ 2022, Compact monolithic SLM 3D-printed filters using pole-generating resonant irises. in 2021 51st European Microwave Conference (EuMC)., 9784337, European Microwave Conference, Institute of Electrical and Electronics Engineers (IEEE), pp. 118-121, 51st European Microwave Conference, EuMC 2021, London, United Kingdom, 4/04/22. https://doi.org/10.23919/EuMC50147.2022.9784337

Compact monolithic SLM 3D-printed filters using pole-generating resonant irises. / Qian, Lu; Martinez, Rafael; Salek, Milan et al.
2021 51st European Microwave Conference (EuMC). Institute of Electrical and Electronics Engineers (IEEE), 2022. p. 118-121 9784337 (European Microwave Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Compact monolithic SLM 3D-printed filters using pole-generating resonant irises

AU - Qian, Lu

AU - Martinez, Rafael

AU - Salek, Milan

AU - Attallah, Moataz

AU - Wang, Yi

AU - Lancaster, Michael J.

PY - 2022/6/2

Y1 - 2022/6/2

N2 - This paper proposes a new pole-generating resonant iris structure for the design of iris-coupled cavity filters. By replacing the conventional reactive iris with a resonant iris, extra transmission pole can be generated without increasing the number of resonant cavities. This leads to several design advantages: (i) a more compact filter structure; and (ii) ability to realize wide bandwidth and to improve out-of-band rejection. To demonstrate these, a third-order Chebyshev filter is designed and implemented, occupying the same footprint as a second-order filter. To facilitate the formation of the intricate resonant iris structures, the filter was printed monolithically using selective laser melting (SLM) technique. Very good agreement between the measurements and simulations has been achieved.

AB - This paper proposes a new pole-generating resonant iris structure for the design of iris-coupled cavity filters. By replacing the conventional reactive iris with a resonant iris, extra transmission pole can be generated without increasing the number of resonant cavities. This leads to several design advantages: (i) a more compact filter structure; and (ii) ability to realize wide bandwidth and to improve out-of-band rejection. To demonstrate these, a third-order Chebyshev filter is designed and implemented, occupying the same footprint as a second-order filter. To facilitate the formation of the intricate resonant iris structures, the filter was printed monolithically using selective laser melting (SLM) technique. Very good agreement between the measurements and simulations has been achieved.

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Compact monolithic SLM 3D-printed filters using pole-generating resonant irises

Abstract

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Bibliographical note

Keywords

ASJC Scopus subject areas

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