Design and Measurement of Possible Wide-band 67-116 GHz ALMA Vacuum Window Anti-reflection Layers

Speirs, Peter; Molina, Roco; Saenz, Elena; Yagoubov, Paul Moseley Pavel; Murk, Axel (2020). Design and Measurement of Possible Wide-band 67-116 GHz ALMA Vacuum Window Anti-reflection Layers. In: 2020 14th European Conference on Antennas and Propagation (EuCAP) (pp. 1-5). IEEE 10.23919/EuCAP48036.2020.9135970

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A new broad-band vacuum lens/window design is required for the new Atacama Large Millimeter/submillimeter Array (ALMA) band 2 receiver, intended to cover 67-116 GHz. A suitable anti-reflection coating (ARC) for this will be necessary. This paper presents the optimization of a candidate ARC designin ultra-high molecular weight polyethylene (UHMWPE), aswell as simulations and measurements of candidate designs insilicon. Machined triangular grooves are used as the ARC for the UHMWPE candidates, and stacked cuboids for the silicon candidate design.

Item Type:

Conference or Workshop Item (Paper)

Division/Institute:

08 Faculty of Science > Institute of Applied Physics
08 Faculty of Science > Institute of Applied Physics > Microwaves

UniBE Contributor:

Speirs, Peter James and Murk, Axel

Subjects:

600 Technology > 620 Engineering
500 Science
500 Science > 530 Physics

ISBN:

978-88-31299-00-8

Publisher:

IEEE

Language:

English

Submitter:

Simone Corry

Date Deposited:

25 Mar 2021 16:23

Last Modified:

25 Mar 2021 16:23

Publisher DOI:

10.23919/EuCAP48036.2020.9135970

BORIS DOI:

10.48350/153019

URI:

https://boris.unibe.ch/id/eprint/153019

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