Practical considerations in the design of monoblock TM dielectric resonator filters with additive manufacturing

Carceller, Carlos; Gentili, Fabrizio; Reichartzeder, Dominik; Bösch, Wolfgang; Schwentenwein, Martin

doi:10.1109/iceaa.2017.8065251

Cited by 8 publications

(6 citation statements)

References 2 publications

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“…The AM process made use of throughout this paper is Lithography-based Ceramic Manufacturing (LCM). A detailed Lithoz LCM process description is provided in [5]. However, it is important to specify some factors of the process and material as they pose limits on designs and realizable structures, and these formed part of the investigation areas in this paper.…”

Section: Theoretical Background and Design Considerationsmentioning

confidence: 99%

Additive Manufacturing of Non-homogenous Dielectric Waveguide Structures and Filters

Robins

Arsanjani

Bartlett

et al. 2021

2021 IEEE MTT-S International Microwave Filter Workshop (IMFW)

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This paper investigates the use of 3D-printed alumina ceramics to achieve variable dielectric constants for novel microwave applications. An introduction to lithography-based ceramic manufacturing exhibits the novel process and material properties, while detailing printing techniques for achieving gradient and equivalent dielectric constants. Printed samples of non-homogeneous dielectrics are presented and briefly discussed. Potential end-use for microwave components are discussed with emphasis on future filter applications.

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Section: Theoretical Background and Design Considerationsmentioning

confidence: 99%

Additive Manufacturing of Non-homogenous Dielectric Waveguide Structures and Filters

Robins

Arsanjani

Bartlett

et al. 2021

2021 IEEE MTT-S International Microwave Filter Workshop (IMFW)

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“…Another example is the approach of manufacturing ceramic monoblock filters, which has received a lot of interest as it requires in the ideal case only metallisation and minimal assembly. Examples of various TM single and dual-mode printed filters are provided in [13]- [15]. Metallisation and manufacturing tolerances proved challenging in [13], [14].…”

Section: Introductionmentioning

confidence: 99%

“…Examples of various TM single and dual-mode printed filters are provided in [13]- [15]. Metallisation and manufacturing tolerances proved challenging in [13], [14]. In reference [15], more success was achieved by the inclusion of a metal mask/backplate on which the tuning elements could be attached so that the manufacturing defects could be more easily compensated.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2022

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This paper demonstrates the use of a ceramic-based stereolithography additive manufacturing process in the fabrication of higher-order mode dielectric resonators. In this work, dielectric resonators with concentric disks around a combline rod structure are 3D-printed using alumina. The integration of the concentric disks for use of the TE 112 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 TE 112 -mode resonators utilising concentric disks are compared through simulations and experimental results. The measured results demonstrate an increased average in the unloaded quality factor of Q u ≈ 2172 which is approximately 44%. Additionally, the application of the 3D-printed resonators is further demonstrated in a TE 112 singlet, doublet, and dualmode filter configuration.

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“…However, they are based on open-ended waveguides that can be readily manufactured as single monolithic blocks. Monolithic lithography-based ceramic manufacturing techniques have also been proposed for the fabrication of dielectric resonator filters [34][35][36][37]. Nevertheless, the operation of this type of filters does not require the metallization of inner filter surface.…”

Section: Introductionmentioning

confidence: 99%

Monolithically-integrated 3D printed coaxial bandpass filters and RF diplexers: single-band and dual-band

Zhao

Psychogiou

2021

Int. J. Microw. Wireless Technol.

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The manuscript reports on additively-manufactured (AM) coaxial-resonator-based bandpass filters (BPFs) and RF diplexers. A monolithic integration concept using stereolithography apparatus (SLA) is proposed and discussed in detail. Coupled-resonator-based synthesis alongside full-electromagnetic-based design methods is used for the design of the monolithic filters and RF diplexers. In particular, the paper discusses a new external coupling mechanism for dual-band BPFs that allow to independently control the coupling in each of the BPF passbands. Furthermore, a novel coaxial transmission line-type T-junction is proposed for the design of single- and dual-band RF diplexers. For practical validation purposes, multiple BPF and RF diplexer prototypes were designed, manufactured and tested at S- and C-band demonstrating the applicability of the proposed concept to low-cost, low-loss and low-weight RF components with complex geometrical features.

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Practical considerations in the design of monoblock TM dielectric resonator filters with additive manufacturing

Cited by 8 publications

References 2 publications

Additive Manufacturing of Non-homogenous Dielectric Waveguide Structures and Filters

Additive Manufacturing of Non-homogenous Dielectric Waveguide Structures and Filters

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

Monolithically-integrated 3D printed coaxial bandpass filters and RF diplexers: single-band and dual-band

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