Dynamic measurement of forward scattering

Author

Appel-Hansen, J. ; Rusch, W. V T

Author_Institution

Technical University of Denmark, Lyngby, Denmark

Volume

23

Issue

6

fYear

1975

fDate

11/1/1975 12:00:00 AM

Firstpage

846

Lastpage

850

Abstract

A dynamic method for the measurement of forward scattering in a radio anechoic chamber is described. The quantity determined is the induced-field-ratio (IFR) of conducting cylinders. The determination of the IFR is highly sensitive to 1) multiple scattering between the cylinder and the obpring antenna and 2) extraneous scattering from the lining of the anechoic chamber. In order to eliminate the influence of multiple scattering, the measurements are made dynamically, i.e., the cylinders are mounted on a moving cart. The consequences of this movement are analyzed. Experimental data are presented in terms of the dynamic measurements. The influence of extraneous scattering is evaluated and an indication of a method for reducing errors due to extraneous scattering is given.

Keywords

Anechoic chambers, electromagnetic; Electromagnetic (EM) measurements; Anechoic chambers; Antenna measurements; Current density; Dielectric measurements; Magnetic field measurement; Microwave measurements; Permittivity measurement; Scattering parameters; Surface waves; Testing;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.1975.1141199

Filename

1141199