Performance Evaluation of Simple HF Antenna Systems.

Abstract

An extensive method of moments program (WF-LLL2B) has been modified to evaluate the effects of ground screen systems on the low angle radiation from vertically polarized HF antennas. Theoretical consideration was presented to justify the modification. The revised code was used to evaluate the HF antennas with ground screens of one, three and four ground wires. The low angle enhancement and front-to-back ratio of each ground screen were calculated. The influence of the height of back screen reflecting screens on the low angle radiation of broadside arrays was also studied. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1978
Accession Number
ADA057255

Entities

People

  • C. L. Chen
  • W. L. Weeks

Organizations

  • Purdue University

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Antenna Arrays
  • Antennas
  • Arrays
  • Bessel Functions
  • Boundaries
  • Computer Programs
  • Computers
  • Coordinate Systems
  • Dielectric Permittivity
  • Differential Equations
  • Digital Computers
  • Low Angles
  • Method Of Moments
  • Near Field
  • Radiation
  • Radiation Patterns

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering