A comparison of field patterns for bare and insulated circular‐loop antennas
- 1 April 1976
- journal article
- Published by American Geophysical Union (AGU) in Radio Science
- Vol. 11 (4) , 351-355
- https://doi.org/10.1029/rs011i004p00351
Abstract
An apparatus designed to measure field patterns of circular‐loop antennas immersed in fresh water is described. Measured field patterns are presented to show the differences between bare and insulated loop antennas and to compare loops having different forms of insulation. The insulation is seen to alter the field pattern significantly when the loop dimensions are such that it is electrically large in the water but not in dielectric material forming the insulation. Some shaping of the field pattern can be accomplished by placing the wire loop asymmetrically in the insulation. The measured field patterns are in good agreement with theoretical patterns calculated using the Fourier series analyses for bare and insulated circular‐loop antennas.Keywords
This publication has 7 references indexed in Scilit:
- Measured properties of bare and insulated antennas in sandIEEE Transactions on Antennas and Propagation, 1975
- A theoretical and experimental study of the insulated loop antenna in a dissipative mediumRadio Science, 1973
- Liquid Water: Dielectric PropertiesPublished by Springer Nature ,1972
- A note on the insulated loop antenna immersed in a conducting mediumJournal of Research of the National Bureau of Standards, Section D: Radio Science, 1964
- Effects of a surrounding conducting medium on antenna analysisIEEE Transactions on Antennas and Propagation, 1963
- Impedance of a circular loop in an infinite conducting mediumJournal of Research of the National Bureau of Standards, Section D: Radio Propagation, 1962
- Insulated loop antenna immersed in a conducting mediumJournal of Research of the National Bureau of Standards, 1957