Record Display for the EPA National Library Catalog


Main Title Numerical Modeling Study of Gain and Downward Radiation for Selected FM and VHF-TV Broadcast Antenna Systems.
Author Adler, R. W. ; Lamont, S. ;
CORP Author AGL, Inc., Pacific Grove, CA.;Office of Radiation Programs-Las Vegas Facility, NV.
Year Published 1985
Report Number EPA/520/6-85/018;
Stock Number PB85-238046
Additional Subjects Television antennas ; Antenna radiation patterns ; Gain ; Television broadcasting ; Frequency modulation ; Very high frequencies ; Computerized simulation ; Mathematical models ;
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB85-238046 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 578p
A modeling study was conducted for the purpose of examining RF radiation exposure levels caused by downward pointing radiation from commercial FM and TV broadcast antenna arrays. The Numerical Electromagnetic Code was used for radiation pattern calculations. Manufacturers' data and measurements were used to provide dimensional information for the computer models. Generic types of FM antennas were identified and their radiation characteristics were presented with emphasis on the reconfiguration of array geometries for purposes of reducing downward directed radiation fields. The popular super-turnstile VHF TV element was also modeled. Gain curves for various interelement spacings were developed for arrays containing 2 through 16 elements.