Monopole Elements with Disk Ground Planes on Flat Earth: Atlas of Directivity, Radiation Efficiency, Radiation Resistance, and Input Impedance

Abstract

Richmond's moment-method programs IRCHMOND3 and RICHMOND4 for monopole elements with disk ground planes above flat Earth are used to obtain computer plots of directivity, radiation efficiency, radiation resistance, and input impedance at 15 MHZ. Results, in the form of an atlas, are presented as a function of Earth classification for thin, quarter-wave monopole elements whose ground planes or radii 0 to 8 wavenumbers rest on Earth. Results are compared with those for a perfect ground plane (of infinite extent and conductivity) and ground plane in free-space. Sea-water enhancement of radiation efficiency and low-angle directivity by comparing results for sea water with those for medium dry ground.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1992
Accession Number
ADA257911

Entities

People

  • Melvin M. Weiner

Organizations

  • MITRE Corporation

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Angle Of Incidence
  • Artificial Intelligence
  • Classification
  • Computer Programs
  • Computers
  • Dielectric Permittivity
  • Efficiency
  • Fresh Water
  • Impedance
  • Low Angles
  • Method Of Moments
  • Plastic Explosives
  • Radiation
  • Radiation Resistance
  • Resistance
  • Sea Water
  • Water

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering

Technology Areas

  • Space
  • Space - Satellites