Optics for the Submillimeter Wave Instrument on Jupiter Mission JUICE

Kotiranta, Mikko; Jacob, Karl; Plüss, Tobias; Hartogh, Paul; Murk, Axel (2020). Optics for the Submillimeter Wave Instrument on Jupiter Mission JUICE. In: 2020 14th European Conference on Antennas and Propagation (EuCAP) (pp. 1-5). IEEE 10.23919/EuCAP48036.2020.9135593

[img] Text
09135593.pdf - Published Version
Restricted to registered users only
Available under License Publisher holds Copyright.

Download (1MB) | Request a copy

The Submillimeter Wave Instrument is a passive heterodyne radiometer/spectrometer for the JUpiter Icy moons Explorer (JUICE) mission of the European Space Agency. It consists of a 29-cm off-axis Cassegrain antenna and passively cooled Schottky-mixer receivers tunable in the frequency ranges of 530-625 and 1080-1275 GHz. This paper gives an overview of the instrument optics and describes the results of Monte Carlo simulations that have been performed to determine the adverse effect of mounting tolerance of relay optics to the instrument far-field performance. Further, instrument thermal contraction based on predicted mission temperatures has been included in the optical model and its effect on the half power beam width has been evaluated. Finally, the electromagnetic reflection loss of several coating materials has been assessed. A coating protects the mirrors made of AlBeMet from corrosion and potentially reduces the reflection loss by providing a lower surface resistance than the base material.

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:

Kotiranta, Mikko Matias; Jacob, Karl Friedrich; Plüss, Tobias Oliver and Murk, Axel

Subjects:

600 Technology > 620 Engineering
500 Science > 530 Physics

ISBN:

978-88-31299-00-8

Publisher:

IEEE

Language:

English

Submitter:

Simone Corry

Date Deposited:

25 Mar 2021 16:27

Last Modified:

19 May 2021 12:38

Publisher DOI:

10.23919/EuCAP48036.2020.9135593

BORIS DOI:

10.48350/153020

URI:

https://boris.unibe.ch/id/eprint/153020

Actions (login required)

Edit item Edit item
Provide Feedback