An Experimental Study of Radio Wave Propagation in Simulated Forests and Other Dissipative Environments

摘要

The general features of the set-up that is intended to serve as the laboratory model are discussed and the considerations concerning the frequency of operation, the basic measurements to be undertaken and the appropriate characteristic parameters are described. The dielectric material that would simulate a vegetative medium was the subject of extensive experimentation which represents the major effort during the past interval. Satisfactory dielectric media were produced by doping a foaming material with carbon powder or with absorbent fibers. Their properties and electrical characteristics were measured and are reported herein. (Author)