• DocumentCode
    1552785
  • Title

    Design of tunable modes and dual-band circular patch antenna using shorting posts

  • Author

    Chakravarty, T. ; De, A.

  • Author_Institution
    Millimetre Wave Tech. Group, SAMEER, Calcutta, India
  • Volume
    146
  • Issue
    3
  • fYear
    1999
  • fDate
    6/1/1999 12:00:00 AM
  • Firstpage
    224
  • Lastpage
    228
  • Abstract
    A simple analysis tool is presented, which can predict the resonant frequencies of all normal modes of a circular patch radiator when loaded with a number of passive conducting posts, distributed along the circumference of a circle concentric with the patch radiator. Two specific cases are investigated, where either the resonant frequencies can be tuned in a predictable manner or a closely spaced dual-band antenna with flexible band separation can be designed. It is also shown that for a perturbed circular patch TM01 is the mode with lowest non-zero resonant frequency
  • Keywords
    microstrip antennas; multifrequency antennas; resonance; tuning; TM01 mode; analysis tool; cavity model; circle; circumference; closely spaced dual-band antenna; dual-band circular patch antenna; flexible band separation; loaded circular patch radiator; nonzero resonant frequency; passive conducting posts; perturbed circular patch; resonant frequencies prediction; shorting posts; transcendental equations; tunable modes design;
  • fLanguage
    English
  • Journal_Title
    Microwaves, Antennas and Propagation, IEE Proceedings
  • Publisher
    iet
  • ISSN
    1350-2417
  • Type

    jour

  • DOI
    10.1049/ip-map:19990629
  • Filename
    789847
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1552785