OATS emission data compared with free space emission data

Author

Leferink, Frank B J ; Groot-Boerle, Dick J. ; Puylaert, B.R.M.

Author_Institution

Environ. Test Lab., Hollandse Signaalapparaten B.V., Hengelo, Netherlands

fYear

195

fDate

14-18 Aug 195

Firstpage

333

Lastpage

337

Abstract

This paper presents the correction for free space (FS) with respect to open area test site (OATS) radiated emission data. This correction is applicable to levels measured in a complete absorber lined chamber (CALC) in order to compare these levels with legislative requirements, which are based on OATS measurements. The correction is also applicable to theoretical radiated emission data in order to compare these data with OATS measurement data. Only the influence of the ray paths on the site attenuation (SA) as obtained on an OATS and in a CALC is given. The effects of the antenna patterns, antenna mismatch, influence of metal on the antenna and near field effects are not treated. The correction for a small source located 1 m above the ground plane is given as an example. It is used to compare a practical CALC with an OATS via the site attenuation. A Pascal program used to calculate the correction for any setup is given

Keywords

Pascal; anechoic chambers; antenna testing; attenuation measurement; electrical engineering; electrical engineering computing; electromagnetic interference; legislation; 1 m; OATS emission data; OATS measurement data; Pascal program; complete absorber lined chamber; free space emission data; ground plane; legislative requirements; open area test site; radiated emission data correction; ray paths; site attenuation; source; Antenna measurements; Attenuation; Bibliographies; Communication cables; Impedance measurement; Laboratories; Loaded antennas; Open area test sites; Receiving antennas; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 1995. Symposium Record., 1995 IEEE International Symposium on

Conference_Location

Atlanta, GA

Print_ISBN

0-7803-3608-9

Type

conf

DOI

10.1109/ISEMC.1995.523575

Filename

523575