A 3-LOOP ANTENNA SYSTEM FOR PERFORMING NEAR-FIELD MEASUREMENTS OF ELECTRIC AND MAGNETIC-FIELDS FROM VIDEO DISPLAY TERMINALS

Citation
S. Tofani et al., A 3-LOOP ANTENNA SYSTEM FOR PERFORMING NEAR-FIELD MEASUREMENTS OF ELECTRIC AND MAGNETIC-FIELDS FROM VIDEO DISPLAY TERMINALS, IEEE transactions on electromagnetic compatibility, 38(3), 1996, pp. 341-347
Citations number
7
Categorie Soggetti
Telecommunications,"Engineering, Eletrical & Electronic
ISSN journal
00189375
Volume
38
Issue
3
Year of publication
1996
Pages
341 - 347
Database
ISI
SICI code
0018-9375(1996)38:3<341:A3ASFP>2.0.ZU;2-N
Abstract
This paper discusses the use of a three-loop antenna system (TLAS) for near-field measurement of electric and magnetic fields from video dis play terminals (VDT's). We calculated the electric and magnetic dipole moments to derive the electric and magnetic field patterns in the nea r field region, Electric and magnetic fields, emitted by several diffe rent models of VDT's, were evaluated with the TLAS and were compared w ith those measured by conventional electric and magnetic field probes at different distances and directions from VDT's. A good correlation ( +/-1.6 dB) between the two measurement techniques. was found, This agr eement is within the accuracy (+/-2 dB) of the conventional field prob e measurements.