Research Catalog

Numerical approach for predicting radiation patterns of HF-VHF antennas over irregular terrain

Title
Numerical approach for predicting radiation patterns of HF-VHF antennas over irregular terrain / V.V. Liepa.
Author
Liepa, Valdis V., 1935-
Publication
Boulder, Colo. : U.S. Department of Commerce, Environmental Science Services Administration, Institutes for Environmental Research, Institute for Telecommunication Sciences and Aeronomy, 1967.

Items in the Library & Off-site

Filter by

1 Item

StatusFormatAccessCall NumberItem Location
Request for On-site UseRequest Scan
How do I pick up this item and when will it be ready?
TextUse in library 9298.584Off-site

Details

Additional Authors
  • Institutes for Environmental Research.
  • United States. Environmental Science Services Administration.
  • Institute for Telecommunication Sciences and Aeronomy (U.S.), publisher.
Description
iv, 25 pages : illustrations; 28 cm
Summary
The feasibility of using physical optics approximation for computing radiation patterns of ground-based HF-VHF antennas in the presence of known ground irregularities is investigated. A computer program was written for physical optics formulation to evaluate the composite radiation patterns of a line source above an irregular, but deterministic, perfectly conducting surface. For the special case of a line source above a perfectly conducting plane with semicylindrical boss, the exact field expressions are derived, and the numerical results are compared with those obtained by physical optics for the same geometry. An error criterion that gives a meaningful error estimate at both the maxima and minima values of the radiation pattern is formulated and applied to the computed result. It is concluded that physical optics approximations can be used for predicting the radiation patterns of ground-based HF-VHF antennas.
Series Statement
ESSA technical report IER ; 53. ITSA ; 51
Uniform Title
  • ESSA technical report ; IER 53.
  • ESSA technical report IER ; 53.
  • ESSA technical report IER. ITSA ; 51.
Subject
  • Antenna radiation patterns > Mathematical models > Measurement
  • Radio > Antennas
  • Numerical calculations > Computer programs
  • Radio > Antennes
Note
  • "September 1967."
Bibliography (note)
  • Bibliography: p. 25.
OCLC
  • ocm39753349
  • 39753349
  • SCSB-243548
Owning Institutions
Princeton University Library