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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Salek, Milan
University of Birmingham
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2023High-Q 100 ghz photonic crystal resonator fabricated from a cyclic olefin copolymercitations
- 2023Compact Monolithic 3D-Printed Wideband Filters Using Pole-Generating Resonant Irisescitations
- 2023Evaluation of 3D printed monolithic G-band waveguide componentscitations
- 2022A 3D printed 300 GHz waveguide cavity filter by micro laser sinteringcitations
- 2022Compact monolithic SLM 3D-printed filters using pole-generating resonant irisescitations
- 2021Two‐GHz hybrid coaxial bandpass filter fabricated by stereolithography 3‐D printing
- 2020180 GHz Waveguide Bandpass Filter Fabricated by 3D Printing Technologycitations
- 201990 GHz Micro Laser Sintered Filter: Reproducibility and Quality Assessmentcitations
- 20193-D Printed microwave and terahertz passive components
- 2018W-Band Waveguide Bandpass Filters Fabricated by Micro Laser Sinteringcitations
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article
A 3D printed 300 GHz waveguide cavity filter by micro laser sintering
Abstract
This work explored the use of high-precision metal 3D printing in sub-terahertz waveguide devices and demonstrated a 300 GHz waveguide bandpass filter made by micro laser sintering (MLS) process. The filter structure is composed of five rectangular waveguide cavities (fundamental TE101 mode), two back-to-back right-angle bends and WR-03 waveguide sections. It is made of two identical blocks of stainless steel and two brass plates were used to clamp them together and achieve secure contact in the E-plane cut. The measured response of the as fabricated stainless-steel filter showed minimum passband insertion loss of 4.7 dB due to the degraded effective conductivity of the stainless steel and surface roughness. To reduce the insertion loss, the filter was gold plated using an electro-less process with nickel undercoat layer. Plating the filter significantly improved the passband insertion loss, measured to be between 1.1 and 2.7 dB. Inspection of the filter using an Alicona optical system showed that dimensional accuracy within 15 m on average has been achieved by the MLS printer. The investigative study tested the boundary of the technology in sub-terahertz device applications.