Performance of Toroid Coupled Trees as Antennas.

Abstract

Communications over short ranges through dense wooded or jungle terrains remains a major problem for our armies today. An approach to solving this problem is to use a Hybrid Electromagnetic Antenna Coupler (HEMAC) toroid as a transformer-coupler to excite secondary radiation from the vegetation. The combination of the electric and magnetic fields emitted by the toroid are shown to be as effective as a whip antenna for communicating in the wooded areas adjacent to Fort Monmouth. Initial experiments comparing a HEMAC toroid to a whip antenna are discussed. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1971
Accession Number
AD0889658

Entities

People

  • K. Ikrath
  • K. J. Murphy
  • R. F. Johnson
  • R. T. Hoverter

Organizations

  • United States Army Communications-Electronics Command

Tags

DTIC Thesaurus Topics

  • Antenna Couplers
  • Antennas
  • Electromagnetic Fields
  • Electromagnetic Radiation
  • Magnetic Fields
  • Radiation
  • Transformers
  • Vegetation
  • Whip Antennas

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Microwave Engineering.