Near Fields of Thin-Wire Antennas-Computation and Experiment

Abstract

Techniques for the computation of near fields of thinwire antennas have been reported in the past. In this paper, the methods for such computation are reviewed, some recent developments are described, and extensive experimental verification is reported. The computed near fields of resonant dipole are compared with experiment. The near fields of broadside and endfire linear arrays are reported. The broadside near-field patterns narrow, whereas the endfire patterns broaden, as distance from the array center increases. Finally, the relevance of near-field computation to near-field radiation hazards and to near-field measurements is discussed.

A simplified hybrid calculation method for the surface fields and near fields of surface‐current patches

“…The near-field distributions at a distance 0.03 away from the center of the antenna are shown. Numerical results by SOI are in good agreement with the experiment results from [5]. However, the results obtained by "no subdivision" are scattered around the experiment values.…”

On Contributions at Syracuse University to the Moment Method

“…In this regard, the most frequently used sources of experimental data have been Prof. King [75], [76]. In all cases, agreement between experimental and computed results is excellent whenever a code is applied within its specified range of applicability.…”

Numerical Modeling of Antenna Near Field

“…The method is based on the work by Adams [7], [8]. To compute the electric field at a given point in the near field, a small (testing) thin wire dipole of length l Δ is placed at the point with its …”