Screens for the absorption of micro-wave radiation

• Main Author: Kassner, Max Herbert
• Other Authors: Chipman, R. (Supervisor)
• Format: Others
• Language: en
• Published: McGill University 1950
• Subjects: Physics.
• Online Access: http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=122792

This paper is concerned with an investigation into the absorption characteristics of an absorbent screen, consisting of a thin, partially conductive cloth, separated from a plane metal surface by a dielectiric of constant thickness. A method of measuring these characteristics is described and experimental results are presented which relate reflected power to the angle of incidence for screens employing either air or masonite as dielectria. A theoretical treatment is based on the transmission line analogy of plane wave radiation in free space and leads to the use of simple charts for computation of power reflection coefficients.