Two-element array of insulated antennas in a relatively dense medium

Abstract

The applications and the theory of coupled insulated dipoles and monopoles in a relatively dense medium (like water, the earth, a living tissue) are reviewed. Graphs of the distributions of current and the admittances calculated from the theory are displayed for two-element arrays of air-insulated monopoles in lake water. A comparison is made with measured data and generally good agreement is observed for the currents. Differences in the admittances due to the effects at the junctions between the monopole and the driving coaxial line and the approximations of the theory are discussed.