• DocumentCode
    2174150
  • Title

    Horn Antenna Beam Scanning using Electronically Tunable Aperture Loading

  • Author

    Subbarao, B. ; Fusco, V.F.

  • Author_Institution
    High Frequency Electronics Laboratories, School of Electrical and Electronic Engineering, Queens University, Belfast BT9 5AH, N. Ireland. Ph: 44 2890274087, Fax: 44 2890667023
  • fYear
    2002
  • fDate
    23-26 Sept. 2002
  • Firstpage
    1
  • Lastpage
    3
  • Abstract
    In this paper we demonstrate antenna beam steering from a single X-band horn antenna whose aperture is loaded using an electronically tunable surface. The surface is a periodic array of electrically small, coupled resonators, a high-impedance surface. The transmission phase across the surface can be selectively varied by tuning the resonance frequency of the surface as a function of position. When positioned in the aperture of a horn antenna and excited by the antenna radiated field this phase gradient can be used to tilt the antenna far field pattern from 0° to 25°.
  • Keywords
    Antenna measurements; Aperture antennas; Beam steering; Capacitance; Diodes; Frequency; Horn antennas; Loaded antennas; Tunable circuits and devices; Varactors;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Microwave Conference, 2002. 32nd European
  • Conference_Location
    Milan, Italy
  • Type

    conf

  • DOI
    10.1109/EUMA.2002.339420
  • Filename
    4140500
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2174150