THE ADMITTANCE OF BARE CIRCULAR LOOP ANTENNAS IN A DISSIPATIVE MEDIUM

Abstract

The normalized input admittance of thin bare circular loop antennas is evaluated from the theory of T. T. Wu. Computations are made for loops in air and in an infinite homogeneous isotropic dissipative medium. A comparison is also made with Storer's theory of the loop. Numerical results are given in the form of graphs for several wire sizes and for loops up to 2.5 wavelengths in circumference. The properties of the medium are represented by the ratio alpha/ beta in the range from zero (perfect dielectric) to one (good conductor); alpha and beta are the imaginary and real parts of the complex propagation constant k=beta - j alpha = omega square root of (mu (epsilon - j sigma/omega) where mu is the permeability, epsilon the dielectric constant and sigma the conductivity of the medium.

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Document Details

Document Type
Technical Report
Publication Date
Aug 05, 1963
Accession Number
AD0600539

Entities

People

  • C. W. Harrison Jr.
  • D. G. Tingley
  • R. W. King

Organizations

  • Harvard University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Air Force
  • Antennas
  • Bessel Functions
  • Cylindrical Antennas
  • Delta Functions
  • Dielectric Permittivity
  • Dipole Antennas
  • Electromagnetism
  • Fourier Series
  • Impedance
  • Loop Antennas
  • Military Research
  • Navy
  • Numbers
  • Plastic Explosives
  • United States
  • United States Government

Fields of Study

  • Physics

Readers

  • Analytical Mechanics
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering