Excitation Mechanisms for Transmission Through Forest-Covered and Vegetated Media

Abstract

Simple asymptotic expressions are derived for the lateral wave excited by loop and dipole antennas in or above a foliage layer. It is shown that the horizontal magnetic dipole (loop in vertical plane) has signal strengths comparable with the vertical electric dipole provided the moments for the two antennas are normalized so that they have equal radiation resistances in free-space.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1973
Accession Number
AD0771915

Entities

People

  • James R. Wait
  • Randolph H. Ott

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Antennas
  • Commerce
  • Communication Systems
  • Dipole Antennas
  • Dipoles
  • Electric Fields
  • Electromagnetic Fields
  • Electromagnetic Wave Propagation
  • Frequency
  • Magnetic Dipoles
  • Magnetic Fields
  • Models
  • Radiation
  • Radiation Resistance
  • Radio Waves
  • Transmission Loss
  • Wave Propagation

Readers

  • Microwave Engineering.
  • Structural Dynamics.

Technology Areas

  • Space