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Investigation of Near-Field Contribution in Shooting and Bouncing Rays for Installed Antenna Performance on a Simple Platform
KTH, School of Electrical Engineering and Computer Science (EECS), Electrical Engineering, Space and Plasma Physics.ORCID iD: 0000-0003-1525-1948
Surveillance, Saab AB, Stockholm, Sweden.
KTH, School of Electrical Engineering and Computer Science (EECS), Electrical Engineering, Electromagnetic Engineering and Fusion Science.ORCID iD: 0000-0001-7269-5241
Surveillance, Saab AB, Stockholm, Sweden.
2024 (English)In: 18th European Conference on Antennas and Propagation, EuCAP 2024, Institute of Electrical and Electronics Engineers (IEEE) , 2024Conference paper, Published paper (Refereed)
Abstract [en]

The near-field contribution in the high-frequency method Shooting and Bouncing Rays (SBR) is investigated for installed antenna performance. Three SBR solvers, the in-house solver SIENT and two commercial solvers, are compared to a commercial full-wave solver. SIENT and one commercial solver have an option to disable near-field effects, which allows the strength of these effects to be investigated. The last solver also includes near-field effects. The results indicate an increase in accuracy when including near-field effects. The most notable difference in the far-field phase and the induced surface current are obtained for the in-house solver. Improvements for the surface current density is seen close to the antenna. On the tested platform, the difference in gain is not as notable but it is overestimated for both the in-house solver and the commercial solvers when excluding near-field terms.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE) , 2024.
Keywords [en]
Computational Electromagnetics (CEM), Installed Antenna Performance, Near-Field, Shooting and Bouncing Rays (SBR)
National Category
Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:kth:diva-346526DOI: 10.23919/EuCAP60739.2024.10500933Scopus ID: 2-s2.0-85192477107OAI: oai:DiVA.org:kth-346526DiVA, id: diva2:1858442
Conference
18th European Conference on Antennas and Propagation, EuCAP 2024, Glasgow, United Kingdom of Great Britain and Northern Ireland, Mar 17 2024 - Mar 22 2024
Note

QC 20240520

Part of ISBN 978-88-31299-09-1

Available from: 2024-05-16 Created: 2024-05-16 Last updated: 2024-05-20Bibliographically approved

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Hultin, HaraldJonsson, B. Lars G.

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