Towards planar phaseless near-field measurements of ESA's JUICE mission 600 GHz SWI reflector antenna

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

The Submillimeter Wave Instrument is a 600GHz spectrometer with a 30cm reflector antenna, part of the payload of the ESA JUICE mission. Due to the difficulty of producing reliable phase measurements at such high frequency a phaseless planar nearfield measurement based on the Iterative Fourier Technique (IFT) is explored. The IFT is a well-known technique which has shown good results with aperture-type antennas; furthermore, probe correction has been demonstrated to be possible in one experimental case. In this paper a series of numerical results are presented pointing to the feasibility of a phaseless planar measurement for the SWI. In particular, the effect of the initial guess is evaluated with an accurate guess leading to exceptional results and a very simple constant-phase guess resulting in a less accurate result, but still remarkably accurate for the main beam. Additional simulations concern the use of coarser spatial sampling rates, showing that the sampling spacing can be increased to 32λ without significant aliasing error in the main beam, owing to the the high directivity of the SWI. Results from preliminary experimental investigations will also be reported, if available, at the time of the presentation.
Original languageEnglish
Title of host publicationProceedings of 2016 Antenna Measurement Techniques Association Symposium
Number of pages6
PublisherIEEE
Publication date2016
Pages1-6
ISBN (Print)978-1-5090-5179-3
DOIs
Publication statusPublished - 2016
Event38th Annual Symposium of the Antenna Measurement Techniques Association - Austin, TX, United States
Duration: 30 Oct 20164 Nov 2016

Conference

Conference38th Annual Symposium of the Antenna Measurement Techniques Association
CountryUnited States
CityAustin, TX
Period30/10/201604/11/2016
SeriesAmta 2016 Proceedings
ISSN2474-2740

Bibliographical note

Session 14: Innovative Approaches of Antenna Measurement

Cite this

Fernandez Alvarez, J., & Breinbjerg, O. (2016). Towards planar phaseless near-field measurements of ESA's JUICE mission 600 GHz SWI reflector antenna. In Proceedings of 2016 Antenna Measurement Techniques Association Symposium (pp. 1-6). IEEE. Amta 2016 Proceedings https://doi.org/10.1109/AMTAP.2016.7806282
Fernandez Alvarez, Javier ; Breinbjerg, Olav. / Towards planar phaseless near-field measurements of ESA's JUICE mission 600 GHz SWI reflector antenna. Proceedings of 2016 Antenna Measurement Techniques Association Symposium. IEEE, 2016. pp. 1-6 (Amta 2016 Proceedings).
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abstract = "The Submillimeter Wave Instrument is a 600GHz spectrometer with a 30cm reflector antenna, part of the payload of the ESA JUICE mission. Due to the difficulty of producing reliable phase measurements at such high frequency a phaseless planar nearfield measurement based on the Iterative Fourier Technique (IFT) is explored. The IFT is a well-known technique which has shown good results with aperture-type antennas; furthermore, probe correction has been demonstrated to be possible in one experimental case. In this paper a series of numerical results are presented pointing to the feasibility of a phaseless planar measurement for the SWI. In particular, the effect of the initial guess is evaluated with an accurate guess leading to exceptional results and a very simple constant-phase guess resulting in a less accurate result, but still remarkably accurate for the main beam. Additional simulations concern the use of coarser spatial sampling rates, showing that the sampling spacing can be increased to 32λ without significant aliasing error in the main beam, owing to the the high directivity of the SWI. Results from preliminary experimental investigations will also be reported, if available, at the time of the presentation.",
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Fernandez Alvarez, J & Breinbjerg, O 2016, Towards planar phaseless near-field measurements of ESA's JUICE mission 600 GHz SWI reflector antenna. in Proceedings of 2016 Antenna Measurement Techniques Association Symposium. IEEE, Amta 2016 Proceedings, pp. 1-6, 38th Annual Symposium of the Antenna Measurement Techniques Association, Austin, TX, United States, 30/10/2016. https://doi.org/10.1109/AMTAP.2016.7806282

Towards planar phaseless near-field measurements of ESA's JUICE mission 600 GHz SWI reflector antenna. / Fernandez Alvarez, Javier; Breinbjerg, Olav.

Proceedings of 2016 Antenna Measurement Techniques Association Symposium. IEEE, 2016. p. 1-6 (Amta 2016 Proceedings).

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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N2 - The Submillimeter Wave Instrument is a 600GHz spectrometer with a 30cm reflector antenna, part of the payload of the ESA JUICE mission. Due to the difficulty of producing reliable phase measurements at such high frequency a phaseless planar nearfield measurement based on the Iterative Fourier Technique (IFT) is explored. The IFT is a well-known technique which has shown good results with aperture-type antennas; furthermore, probe correction has been demonstrated to be possible in one experimental case. In this paper a series of numerical results are presented pointing to the feasibility of a phaseless planar measurement for the SWI. In particular, the effect of the initial guess is evaluated with an accurate guess leading to exceptional results and a very simple constant-phase guess resulting in a less accurate result, but still remarkably accurate for the main beam. Additional simulations concern the use of coarser spatial sampling rates, showing that the sampling spacing can be increased to 32λ without significant aliasing error in the main beam, owing to the the high directivity of the SWI. Results from preliminary experimental investigations will also be reported, if available, at the time of the presentation.

AB - The Submillimeter Wave Instrument is a 600GHz spectrometer with a 30cm reflector antenna, part of the payload of the ESA JUICE mission. Due to the difficulty of producing reliable phase measurements at such high frequency a phaseless planar nearfield measurement based on the Iterative Fourier Technique (IFT) is explored. The IFT is a well-known technique which has shown good results with aperture-type antennas; furthermore, probe correction has been demonstrated to be possible in one experimental case. In this paper a series of numerical results are presented pointing to the feasibility of a phaseless planar measurement for the SWI. In particular, the effect of the initial guess is evaluated with an accurate guess leading to exceptional results and a very simple constant-phase guess resulting in a less accurate result, but still remarkably accurate for the main beam. Additional simulations concern the use of coarser spatial sampling rates, showing that the sampling spacing can be increased to 32λ without significant aliasing error in the main beam, owing to the the high directivity of the SWI. Results from preliminary experimental investigations will also be reported, if available, at the time of the presentation.

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Fernandez Alvarez J, Breinbjerg O. Towards planar phaseless near-field measurements of ESA's JUICE mission 600 GHz SWI reflector antenna. In Proceedings of 2016 Antenna Measurement Techniques Association Symposium. IEEE. 2016. p. 1-6. (Amta 2016 Proceedings). https://doi.org/10.1109/AMTAP.2016.7806282