Accession Number:

AD0738177

Title:

Pattern Measurement and Modeling of Full-Scale VHF Antennas in a Thailand Tropical Forest

Descriptive Note:

Special technical rept. no. 39

Corporate Author:

STANFORD RESEARCH INST MENLO PARK CA

Personal Author(s):

Report Date:

1971-12-01

Pagination or Media Count:

212.0

Abstract:

Measurements of the radiation patterns of full-scale simple VHF antennas Half-wavelength dipoles were performed while the antennas were situated in a second-growth tropical forest in Thailand. The data was processed statistically using a digital computer to provide contour plots of the median signal strength as a function of azimuth and elevation angle. In addition to the contour plots of the radiation patterns for the two polarizations, estimators of the standard deviations of the signal strength, and a comparison of the relative gains of the average signal strength at the measured pattern maxima are provided.

Subject Categories:

  • Electrical and Electronic Equipment
  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE