Theory of Electrically Short Transmitting and Receiving Antennas

Publisher Website
Google Scholar
Abstract
Complete and quantitatively accurate solutions of the properties of electrically short transmitting and receiving antennas (of length 2h such that 2πh/λ0≦1) are obtained by determining the distributions of current that actually satisfy the integral equations. Components of current in phase and in phase-quadrature with the driving voltage or the incident electric field are evaluated together with the impedance, the effective length, and the gain. It is shown that when the King-Middleton method of solving Hallén's integral equation by iteration is applied correctly, quite accurate results are obtained even in a first-order solution. The greatest error in the first-order formulas is shown to be in the resistance, a small quantity of higher order compared with the reactance. The newly determined values are combined with the King-Middleton second-order results to obtain more complete and more accurate impedances and effective lengths in the range of 0≦2πh/λ≦1.4.

This publication has 6 references indexed in Scilit: