@Article{macau_mods_00002654,
  author = 	{Bartlett, Chad Daniel
		and Malav{\'e}, Antonio
		and Letz, Martin
		and H{\"o}ft, Michael},
  title = 	{Structured-Glass Waveguide Technology for High-Performance Millimetre-Wave Components and Systems},
  journal = 	{IEEE Journal of microwaves},
  year = 	{2022},
  publisher = 	{IEEE},
  address = 	{New York, NY},
  volume = 	{2},
  number = 	{2},
  pages = 	{307--315},
  keywords = 	{Waveguide components; Fabrication; Glass; Production; Micromachining; Metallization; Standards; Bandpass filter; laser-induced micromachining; microfabrication; millimetre-wave; passive components; structured glass; waveguide technology; W-band},
  abstract = 	{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.},
  issn = 	{2692-8388},
  doi = 	{10.1109/JMW.2022.3155793},
  url = 	{https://macau.uni-kiel.de/receive/macau_mods_00002654},
  url = 	{https://doi.org/10.1109/JMW.2022.3155793},
  file = 	{:https://macau.uni-kiel.de/servlets/MCRFileNodeServlet/macau_derivate_00003781/JMicrowaves%20-%20Glass%20Filter.pdf:PDF},
  language = 	{en}
}