Parasitic waveguide element suppresses ground-reflected multipath radiation. Small section of waveguide placed in front of phased-array antenna operating at 850 MHz modifies radiation field by reducing power density parallel to and below ground plane without significantly affecting primary radiation at angles greater than 20 degrees above horizontal. Acts as parasitic radiator that shifts phase of portion of wavefront by approximately 180 degrees, causing partial cancellation in ground plane, thereby reducing radiation intensity in that direction by about 10 dB. Produces corresponding reduction in multipath radiation scattered from ground. Waveguide technique also used to decouple two nearby antennas.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Passive Element Shapes Antenna Radiation Pattern


    Beteiligte:
    Bonebright, M. E. (Autor:in) / Killion, D. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1986-05-01



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Antenna Radiation-Pattern Program

    Hughes, R. D. / Guiar, C. N. / Lawson, C. L. | NTRS | 1985


    Analysis of aperture antenna radiation pattern

    Herskind, R. / Sayre, E. / Trousdale, J. E. et al. | NTRS | 1979


    Compact antenna has symmetrical radiation pattern

    Kuhlman, E. A. / Mckee, E. D. | NTRS | 1979


    Single-element Patch Antenna with Pattern Control

    Bartone, Chris / Schopis, Joel | British Library Conference Proceedings | 2015


    Autonomous Drone-Based Antenna Radiation Pattern Characterization *

    Owais, Muhammad / Midtiby, Henrik / Trifon, Diana et al. | IEEE | 2022