An Investigation of the Possible Uses of the Normal Mode Helical Antenna in the Tactical Army.

Abstract

This paper briefly discusses the need for electrically short antennas in the combat maneuver units of the modern field army. A brief history of the work done in the field of helical antennas is presented. An approximate mathematical development is presented which describes the radiation fields of the thin normal mode helical antenna. From the radiation fields, the equations for the polarization ratio and the radiation resistance are developed. A possible design for a tactical VHF-FM antenna to cover the frequency range 30-76 MHZ is presented. The design technique is discussed in detail and a calculator program for computing the input impedance is given. The results of experimental testing are presented and recommendations for improvement are given. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1978
Accession Number
ADA056324

Entities

People

  • Michael Dean Vennum

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Antennas
  • Diameters
  • Dipoles
  • Electrical Engineering
  • Engineering
  • Equations
  • Frequency
  • Frequency Bands
  • Geometry
  • Helical Antennas
  • Impedance
  • Magnetic Dipoles
  • Polarization
  • Radiation
  • Radiation Resistance
  • Radio Equipment
  • Resistance

Fields of Study

  • Physics

Readers

  • Microwave Engineering.
  • Military Science