000K utf8 1100 $c2022 1500 eng 2050 urn:nbn:de:gbv:8:3-2022-00268-5 2051 10.1109/JMW.2022.3155793 3000 Bartlett, Chad Daniel 3010 Höft, Michael 3010 Letz, Martin 3010 Malavé, Antonio 4000 Structured-Glass Waveguide Technology for High-Performance Millimetre-Wave Components and Systems [Bartlett, Chad Daniel] 4209 This work presents a novel waveguide medium based on laser-induced structured-glass for the design of high-end millimetre-wave components and systems. The material properties, fabrication process and functional attributes of the structured-glass technology are first described and then applied in order to demonstrate a fourth-order bandpass filter prototype operating within the W-band frequency range, centered around 88 GHz with a narrow fractional bandwidth of 2.3%. The basic filter design, dimensional considerations, and assembly process are discussed in order to outline the fabrication process. The prototype filter, along with its associated feed-line transitions and split-block interface are measured and characterized in the laboratory in order to validate the design approach. The measured response is shown to be exceptionally accurate; the insertion loss is found to be approximately 1.43 dB - 1.97 dB throughout the measured passband with a return loss of better than 22 dB and center-frequency offset of approximately 0.117%. A comparison to existing technologies is discussed in order to highlight the advantages of the proposed medium and to contrast the differences in both manufacture and achievable results for high-end components. 4950 https://doi.org/10.1109/JMW.2022.3155793$xR$3Volltext$534 4950 https://nbn-resolving.org/urn:nbn:de:gbv:8:3-2022-00268-5$xR$3Volltext$534 4961 https://macau.uni-kiel.de/receive/macau_mods_00002654 5051 621.3 5550 Bandpass filter 5550 Fabrication 5550 Glass 5550 laser-induced micromachining 5550 Metallization 5550 microfabrication 5550 Micromachining 5550 millimetre-wave 5550 passive components 5550 Production 5550 Standards 5550 structured glass 5550 Waveguide components 5550 waveguide technology 5550 W-band