3D-Printed Dielectric Resonators for Quasi-TE112 Mode Singlets, Doublets and Dual-Mode Filters

This paper demonstrates the use of a ceramic stereolithography-based additive manufacturing process to fabricate higher-order mode dielectric resonators. In this work, dielectric resonators with concentric rings around a combline rod structure are 3D-printed using alumina. The integration of the con...

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Main Authors: Luke Robins, Chad Bartlett, Arash Arsanjani, Abdulrahman Widaa, Reinhard Teschl, Michael Hoft, Wolfgang Bosch
Format: Article
Language:English
Published: IEEE 2022-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9982438/
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author Luke Robins
Chad Bartlett
Arash Arsanjani
Abdulrahman Widaa
Reinhard Teschl
Michael Hoft
Wolfgang Bosch
author_facet Luke Robins
Chad Bartlett
Arash Arsanjani
Abdulrahman Widaa
Reinhard Teschl
Michael Hoft
Wolfgang Bosch
author_sort Luke Robins
collection DOAJ
description This paper demonstrates the use of a ceramic stereolithography-based additive manufacturing process to fabricate higher-order mode dielectric resonators. In this work, dielectric resonators with concentric rings around a combline rod structure are 3D-printed using alumina. The integration of the concentric rings for the use of the TE112 mode allows for a more compact cavity structure and a higher unloaded quality factor when compared to a simple dielectric combline resonator with a similar S-parameter response. The achievable improvements in quality factor for the TE112-mode resonators utilising concentric rings are compared through simulations and experimental results. The measured results demonstrate an increased average in the unloaded quality factor of <inline-formula> <tex-math notation="LaTeX">$\text{Q}_{u}\approx ~2172$ </tex-math></inline-formula> which is approximately 44&#x0025;. Additionally, the application of the 3D-printed resonators is further demonstrated in a TE112 singlet, doublet, and dual-mode filter configuration.
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spelling doaj.art-f27c7b01be5544baa24434ac9feaa6152022-12-22T00:01:13ZengIEEEIEEE Access2169-35362022-01-011013032613033810.1109/ACCESS.2022.322876499824383D-Printed Dielectric Resonators for Quasi-TE112 Mode Singlets, Doublets and Dual-Mode FiltersLuke Robins0https://orcid.org/0000-0002-2230-4043Chad Bartlett1https://orcid.org/0000-0003-3876-9889Arash Arsanjani2https://orcid.org/0000-0001-5271-7941Abdulrahman Widaa3https://orcid.org/0000-0003-4971-8569Reinhard Teschl4Michael Hoft5https://orcid.org/0000-0001-9352-2868Wolfgang Bosch6https://orcid.org/0000-0002-9312-6811Institute of Microwave and Photonic Engineering, Graz University of Technology, Graz, AustriaDepartment of Electrical and Information Engineering, Kiel University, Kiel, GermanyInstitute of Microwave and Photonic Engineering, Graz University of Technology, Graz, AustriaDepartment of Electrical and Information Engineering, Kiel University, Kiel, GermanyInstitute of Microwave and Photonic Engineering, Graz University of Technology, Graz, AustriaDepartment of Electrical and Information Engineering, Kiel University, Kiel, GermanyInstitute of Microwave and Photonic Engineering, Graz University of Technology, Graz, AustriaThis paper demonstrates the use of a ceramic stereolithography-based additive manufacturing process to fabricate higher-order mode dielectric resonators. In this work, dielectric resonators with concentric rings around a combline rod structure are 3D-printed using alumina. The integration of the concentric rings for the use of the TE112 mode allows for a more compact cavity structure and a higher unloaded quality factor when compared to a simple dielectric combline resonator with a similar S-parameter response. The achievable improvements in quality factor for the TE112-mode resonators utilising concentric rings are compared through simulations and experimental results. The measured results demonstrate an increased average in the unloaded quality factor of <inline-formula> <tex-math notation="LaTeX">$\text{Q}_{u}\approx ~2172$ </tex-math></inline-formula> which is approximately 44&#x0025;. Additionally, the application of the 3D-printed resonators is further demonstrated in a TE112 singlet, doublet, and dual-mode filter configuration.https://ieeexplore.ieee.org/document/9982438/Additive manufacturingbandpass filterdielectric resonatordoubletdual-modeminiaturisation
spellingShingle Luke Robins
Chad Bartlett
Arash Arsanjani
Abdulrahman Widaa
Reinhard Teschl
Michael Hoft
Wolfgang Bosch
3D-Printed Dielectric Resonators for Quasi-TE112 Mode Singlets, Doublets and Dual-Mode Filters
IEEE Access
Additive manufacturing
bandpass filter
dielectric resonator
doublet
dual-mode
miniaturisation
title 3D-Printed Dielectric Resonators for Quasi-TE112 Mode Singlets, Doublets and Dual-Mode Filters
title_full 3D-Printed Dielectric Resonators for Quasi-TE112 Mode Singlets, Doublets and Dual-Mode Filters
title_fullStr 3D-Printed Dielectric Resonators for Quasi-TE112 Mode Singlets, Doublets and Dual-Mode Filters
title_full_unstemmed 3D-Printed Dielectric Resonators for Quasi-TE112 Mode Singlets, Doublets and Dual-Mode Filters
title_short 3D-Printed Dielectric Resonators for Quasi-TE112 Mode Singlets, Doublets and Dual-Mode Filters
title_sort 3d printed dielectric resonators for quasi te112 mode singlets doublets and dual mode filters
topic Additive manufacturing
bandpass filter
dielectric resonator
doublet
dual-mode
miniaturisation
url https://ieeexplore.ieee.org/document/9982438/
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