Spillover Analysis and Mainbeam Characterisation of Arctic Weather Satellite Radiometer Using Method of Moments
The Arctic Weather Satellite (AWS) is a single instrument mission consisting of a microwave sounder operating in the 54, 89, 183 and 325 GHz bands. The optical design of the instrument consists of a feedcluster directly illuminating a crosstrack scanning mirror, keeping the instrument compact. Due t...
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IEEE
2024-01-01
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| Series: | IEEE Open Journal of Antennas and Propagation |
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| Online Access: | https://ieeexplore.ieee.org/document/10681486/ |
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| author | Roland Albers Mustafa Murat Bilgic Karl-Erik Kempe Alistair Bell Axel Murk |
| author_facet | Roland Albers Mustafa Murat Bilgic Karl-Erik Kempe Alistair Bell Axel Murk |
| author_sort | Roland Albers |
| collection | DOAJ |
| description | The Arctic Weather Satellite (AWS) is a single instrument mission consisting of a microwave sounder operating in the 54, 89, 183 and 325 GHz bands. The optical design of the instrument consists of a feedcluster directly illuminating a crosstrack scanning mirror, keeping the instrument compact. Due to the simple optics, the beams are not co-aligned and none are in the scanning mirror focal point, leading to beam divergence, asymmetry and scan angle dependent variations in spillover. Using Method of Moment (MoM) simulations of the optics as well as instrument structure, the complete farfield sphere of the instrument can be simulated up to 183 GHz. This paper contains detailed analysis of spillover, beam divergence and intercomparison of physical optics, MoM and nearfield antenna measurements for the mainbeam. |
| format | Article |
| id | doaj-art-0d752aab8f454ff189d112f816e2dd86 |
| institution | OA Journals |
| issn | 2637-6431 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Open Journal of Antennas and Propagation |
| spelling | doaj-art-0d752aab8f454ff189d112f816e2dd862025-08-20T02:36:42ZengIEEEIEEE Open Journal of Antennas and Propagation2637-64312024-01-01561795180410.1109/OJAP.2024.346260110681486Spillover Analysis and Mainbeam Characterisation of Arctic Weather Satellite Radiometer Using Method of MomentsRoland Albers0https://orcid.org/0000-0002-8537-2844Mustafa Murat Bilgic1Karl-Erik Kempe2Alistair Bell3https://orcid.org/0009-0009-7987-140XAxel Murk4https://orcid.org/0000-0003-2949-844XInstitute of Applied Physics, Bern University, Bern, SwitzerlandTICRA, Copenhagen, DenmarkAAC Omnisys, Gothenburg, SwedenInstitute of Applied Physics, Bern University, Bern, SwitzerlandInstitute of Applied Physics, Bern University, Bern, SwitzerlandThe Arctic Weather Satellite (AWS) is a single instrument mission consisting of a microwave sounder operating in the 54, 89, 183 and 325 GHz bands. The optical design of the instrument consists of a feedcluster directly illuminating a crosstrack scanning mirror, keeping the instrument compact. Due to the simple optics, the beams are not co-aligned and none are in the scanning mirror focal point, leading to beam divergence, asymmetry and scan angle dependent variations in spillover. Using Method of Moment (MoM) simulations of the optics as well as instrument structure, the complete farfield sphere of the instrument can be simulated up to 183 GHz. This paper contains detailed analysis of spillover, beam divergence and intercomparison of physical optics, MoM and nearfield antenna measurements for the mainbeam.https://ieeexplore.ieee.org/document/10681486/Microwave radiometryquasi-opticsremote sensingMethod of Moment (MoM)antenna patterns |
| spellingShingle | Roland Albers Mustafa Murat Bilgic Karl-Erik Kempe Alistair Bell Axel Murk Spillover Analysis and Mainbeam Characterisation of Arctic Weather Satellite Radiometer Using Method of Moments IEEE Open Journal of Antennas and Propagation Microwave radiometry quasi-optics remote sensing Method of Moment (MoM) antenna patterns |
| title | Spillover Analysis and Mainbeam Characterisation of Arctic Weather Satellite Radiometer Using Method of Moments |
| title_full | Spillover Analysis and Mainbeam Characterisation of Arctic Weather Satellite Radiometer Using Method of Moments |
| title_fullStr | Spillover Analysis and Mainbeam Characterisation of Arctic Weather Satellite Radiometer Using Method of Moments |
| title_full_unstemmed | Spillover Analysis and Mainbeam Characterisation of Arctic Weather Satellite Radiometer Using Method of Moments |
| title_short | Spillover Analysis and Mainbeam Characterisation of Arctic Weather Satellite Radiometer Using Method of Moments |
| title_sort | spillover analysis and mainbeam characterisation of arctic weather satellite radiometer using method of moments |
| topic | Microwave radiometry quasi-optics remote sensing Method of Moment (MoM) antenna patterns |
| url | https://ieeexplore.ieee.org/document/10681486/ |
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