Validation measurements for the Fresnel approximation of the PO model

Author

Coster, I. De ; Van Lil, E. ; Loureiro, B.Gavilanes ; Delmotte, P. ; van de Capelle, A.

Author_Institution

Katholieke Universiteit Leuven(ESAT-TELEMIC), Belgium, Kard. Mercierlaan 94, B-3001 Heverlee, tel. +32 16 32 11 13 (fax: 19 86), irisdc@esat.kuleuven.ac.be

Volume

1

fYear

1998

fDate

Oct. 1998

Firstpage

463

Lastpage

468

Abstract

In [1] a Fresnel approximation for a Physical Optics (PO) model was proposed to calculate the reflected field in propagation calculations. The purpose of these formulas is to overcome the two main disadvantages of the classical Geometrical Optics (GO) formulas. The GO formulas can not calculate the field in a direction different from the specular direction and they suppose always the presence of an infinite reflecting surface. The new Physical Optics formulas overcome these disadvantages and are computationally efficient at the same time. Measurements performed in the anechoic chamber of ESAT/TELEMIC to validate these new formulas, are described in this paper. Both the experimental procedure and the results are discussed.

Keywords

Anechoic chambers; Antenna measurements; Calibration; Horn antennas; Optical propagation; Optical surface waves; Performance evaluation; Physical optics; Position measurement; Reflection;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 1998. 28th European

Conference_Location

Amsterdam, Netherlands

Type

conf

DOI

10.1109/EUMA.1998.338033

Filename

4139120