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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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Wang, Hui
Queen's University Belfast
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (23/23 displayed)
- 2024CNC-Machined and 3D-Printed Metal G-band Diplexers for Earth Observation Applicationscitations
- 2023Evaluation of 3D printed monolithic G-band waveguide componentscitations
- 2023Machine learning on spectral data from miniature devices for food quality analysis - a case study
- 2023Halide-guided active site exposure in bismuth electrocatalysts for selective CO2 conversion into formic acidcitations
- 2023Halide-guided active site exposure in bismuth electrocatalysts for selective CO2 conversion into formic acid
- 2022A 3D printed 300 GHz waveguide cavity filter by micro laser sinteringcitations
- 2022D-band waveguide diplexer fabricated using micro laser sinteringcitations
- 2022Waste‐Derived Copper‐Lead Electrocatalysts for CO<sub>2</sub> Reductioncitations
- 2022Waste-Derived Copper-Lead Electrocatalysts for CO 2 Reductioncitations
- 2022Waste-Derived Copper-Lead Electrocatalysts for CO2 Reduction
- 2021125 GHz frequency doubler using a waveguide cavity produced by stereolithographycitations
- 2021Trileucine as a dispersibility enhancer of spray-dried inhalable microparticlescitations
- 2016Thermoelectric Properties of Polymeric Mixed Conductorscitations
- 2014Self-assembled nano- to micron-size fibers from molten R11Ni4In9 intermetallicscitations
- 2014Semi-metallic polymerscitations
- 2014Semi-metallic polymerscitations
- 2013Spatially resolved investigation of strain and composition variations in (In,Ga)N/GaN epilayerscitations
- 2013Exploring suitable oligoamines for phantom ring-closing condensation polymerization with guanidine hydrochloridecitations
- 2013A novel method to measure diffusion coefficients in porous metal-organic frameworks (vol 12, pg 8093, 2010)
- 2010A metadata-based approach for multimedia service mashup in IMS
- 2010A novel method to measure diffusion coefficients in porous metal-organic frameworkscitations
- 2010Phenotypic characterization of shewanella oneidensis MR-1 under aerobic and anaerobic growth conditions by using fourier transform infrared spectroscopy and high-performance liquid chromatography analysescitations
- 2010Impact of silver(I) on the metabolism of Shewanella oneidensiscitations
Places of action
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article
Evaluation of 3D printed monolithic G-band waveguide components
Abstract
This paper presents a comprehensive evaluation of 3D-printed monolithic waveguide components fabricated by a high-precision micro laser sintering (MLS) process. The investigated devices are two 180 GHz bandpass filters and a straight G-band (140-220 GHz) waveguide section. All were made of stainless steel, which was later gold coated using an electroless process. One of the filter samples was characterized using X-ray micro-CT to inspect the printing quality as well as measure the internal dimensions. The sample was then sectioned to allow measurement of the surface roughness of the inner surfaces and inspect the gold coating quality. The as-manufactured stainless steel components showed high insertion losses: over 3 dB in the filter passbands and between 4.7 dB and 7 dB for the waveguide section, increasing with frequency over the G- and. This loss is due to the electrical conductivity of stainless steel as well as the surface roughness. Gold plating significantly reduced the insertion losses, to 0.5 dB for the filters and to between 0.6 dB and 1 dB for the waveguide section. The investigative study showed the high dimensional accuracy and good printing quality achieved by MLS, demonstrating the value of the technique in producing monolithic metal waveguide components with fine geometrics.