Effect of a Circular Groundplane on Antenna Radiation
- 1 October 1950
- journal article
- conference paper
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 21 (10) , 1001-1006
- https://doi.org/10.1063/1.1699432
Abstract
The field of a quarter‐wave‐length antenna above a circular conducting disk of zero thickness—the groundplane—is calculated theoretically by use of the wave functions of the oblate spheroid. Assuming a sinusoidal distribution of current on the antenna, we compute the currents on the groundplane, the radiation resistance and the radiation pattern of the system for various values of the radius a. With these results the distortion of antenna radiation by finite groundplanes can be studied. We find good agreement with recent experimental data.This publication has 4 references indexed in Scilit:
- The oblate spheroidal wave functionsJournal of the Franklin Institute, 1950
- Diffraction of Sound by a Circular DiskThe Journal of the Acoustical Society of America, 1949
- Measured Impedance of Vertical Antennas over Finite Ground PlanesProceedings of the IRE, 1949
- The Diffraction of a Circularly Symmetrical Electromagnetic Wave by a Co-axial Circular Disc of Infinite ConuctivityPhysical Review B, 1930