Comparative analysis of cylindrical reflectors of ideal and approximately parabolic shape

S. S. Vinogradov*, A. J. Green, D. Campbell-Wilson, M. Leung, E. D. Vinogradova, J. D. Bunton, M. J. Kesteven

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

    Abstract

    The performance of a cylindrical reflector antenna of approximately parabolic profile is investigated. The theoretical simulations implement both rigorous Method of Regularization and Physical Optics approaches. The Complex- Point Source concept is used (o simulate the tapered illumination. The ideal parabolic profile is approximated by a set of 2N straight line segments. A long electric dipole may be moveable from focal line to allow us to examine the impact of focal shifts on the overall performance of the reflector antennas. The methods may be applied to various geometrical and electrical parameters for reflector antennas (D/λ, ≤ 500, p = F/D ≥ 0.1) but they have been mainly used to perform analysis of the giant cylindrical reflector antenna (Molonglo Observatory Synthesis Telescope, MOST) of the University of Sydney, which is located in Australia near Canberra. It was shown that the design of this antenna is potentially capable of increasing its operating frequency from the present 843 MHz to 2 GHz, without significant loss in forward gain or distortion of the radiation pattern.

    Original languageEnglish
    Title of host publication2005 5th International Conference on Antenna Theory and Techniques
    Subtitle of host publicationproceedings
    Place of PublicationPiscataway, NJ
    PublisherInstitute of Electrical and Electronics Engineers (IEEE)
    Pages202-205
    Number of pages4
    ISBN (Print)0780392612, 9780780392618
    DOIs
    Publication statusPublished - 2005
    Event5th International Conference on Antenna Theory and Techniques, 2005 - Kyiv, Ukraine
    Duration: 24 May 200527 May 2005

    Other

    Other5th International Conference on Antenna Theory and Techniques, 2005
    CountryUkraine
    CityKyiv
    Period24/05/0527/05/05

    Keywords

    • Complex-point source
    • Cylindrical reflector antenna
    • Melhod of regularization
    • Parabolic profile
    • Physical optics
    • Square kilometer array

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