Development of ray tracing algorithms for scanning plane and transverse plane analysis for satellite multibeam application

N. H. Abd Rahman, Mohammad Tariqul Islam, Norbahiah Misran, Y. Yamada, N. Michishita

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Reflector antennas have been widely used in many areas. In the implementation of parabolic reflector antenna for broadcasting satellite applications, it is essential for the spacecraft antenna to provide precise contoured beam to effectively serve the required region. For this purpose, combinations of more than one beam are required. Therefore, a tool utilizing ray tracing method is developed to calculate precise off-axis beams for multibeam antenna system. In the multibeam system, each beam will be fed from different feed positions to allow the main beam to be radiated at the exact direction on the coverage area. Thus, detailed study on caustics of a parabolic reflector antenna is performed and presented in this paper, which is to investigate the behaviour of the rays and its relation to various antenna parameters. In order to produce accurate data for the analysis, the caustic behaviours are investigated in two distinctive modes: scanning plane and transverse plane. This paper presents the detailed discussions on the derivation of the ray tracing algorithms, the establishment of the equations of caustic loci, and the verification of the method through calculation of radiation pattern.

Original languageEnglish
Article number812461
JournalInternational Journal of Antennas and Propagation
Volume2014
DOIs
Publication statusPublished - 2014

Fingerprint

Antenna reflectors
Ray tracing
Satellites
Scanning
Multibeam antennas
Antennas
Broadcasting
Spacecraft

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

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abstract = "Reflector antennas have been widely used in many areas. In the implementation of parabolic reflector antenna for broadcasting satellite applications, it is essential for the spacecraft antenna to provide precise contoured beam to effectively serve the required region. For this purpose, combinations of more than one beam are required. Therefore, a tool utilizing ray tracing method is developed to calculate precise off-axis beams for multibeam antenna system. In the multibeam system, each beam will be fed from different feed positions to allow the main beam to be radiated at the exact direction on the coverage area. Thus, detailed study on caustics of a parabolic reflector antenna is performed and presented in this paper, which is to investigate the behaviour of the rays and its relation to various antenna parameters. In order to produce accurate data for the analysis, the caustic behaviours are investigated in two distinctive modes: scanning plane and transverse plane. This paper presents the detailed discussions on the derivation of the ray tracing algorithms, the establishment of the equations of caustic loci, and the verification of the method through calculation of radiation pattern.",
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AU - Abd Rahman, N. H.

AU - Islam, Mohammad Tariqul

AU - Misran, Norbahiah

AU - Yamada, Y.

AU - Michishita, N.

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