Ray tracing technique for shaping a dual reector antenna system

Md Rezwanul Ahsan, Mohammad Tariqul Islam, Yoshihide Yamada, Norbahiah Misran

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In radio astronomy applications, antennas having the highest aperture efficiencies are requested. In order to meet this request, a reector shaping program for dual reector antennas has been developed. The design procedure is based on the geometrical optics where differential equations have been formulated to define the ray trace of the antenna system. Recently, the fourth generation programming language MATLAB has become well known for its numerical computing environment and very useful three-dimensional data visualization functions. The authors wished to make a dual reector shaping program by a ray tracing method in MATLAB. In this paper, details of the program are explained, and antenna ray tracing results are shown visually by three-dimensional viewgraphs. The numerical results are compared with the theoretical ones to confirm the correctness of the developed shaping program for a Cassegrain dual reector antenna system. For uniform aperture distribution the first side lobe level is numerically obtained as -17.59 dB, which can be further reduced through shaping to -24.67 dB and -30.65 dB for parabolic and squared parabolic, respectively.

Original languageEnglish
Pages (from-to)1223-1234
Number of pages12
JournalTurkish Journal of Electrical Engineering and Computer Sciences
Volume24
Issue number3
DOIs
Publication statusPublished - 2016

Fingerprint

Ray tracing
Antennas
MATLAB
Radio astronomy
Geometrical optics
Data visualization
Computer programming languages
Differential equations

Keywords

  • Dual reector
  • Geometrical optics
  • Numerical analysis
  • Ray tracing
  • Reector antennas
  • Reector shaping

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science(all)

Cite this

Ray tracing technique for shaping a dual reector antenna system. / Ahsan, Md Rezwanul; Islam, Mohammad Tariqul; Yamada, Yoshihide; Misran, Norbahiah.

In: Turkish Journal of Electrical Engineering and Computer Sciences, Vol. 24, No. 3, 2016, p. 1223-1234.

Research output: Contribution to journalArticle

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