Dipole Receive Characteristics in the Presence of Sea Water

Abstract

ARINE ANTENNAS, *DIPOLE ANTENNAS), ULTRAHIGH FREQUENCY, NUMERICAL ANALYSIS, RADIOFREQUENCY POWER, SPACE TO SURFACE, MATHEMATICAL MODELSThe receive properties for a dipole in the presence of sea water were obtained by solving integral equations for currents along the unloaded dipole and its image. For dipoles of 0.1 wavelength or higher above the sea surface, the performance resembled that of a dipole over a perfectly conducting plane; for dipoles within 0.1 wavelength above the sea surface, the relative gain dropped in about the same proportion as the relative reduction in the strength of the resultant electric field. An insulated wavelength/2 dipole with a conjugate load matched in free space had a relative power gain of 17 dB below isotropic at the sea surface.

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Document Details

Document Type
Technical Report
Publication Date
Dec 26, 1972
Accession Number
AD0763722

Entities

People

  • Peter S. Kao

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Angle Of Incidence
  • Antennas
  • Circuits
  • Coefficients
  • Dipole Antennas
  • Dipoles
  • Electric Fields
  • Equations
  • Gain
  • Integral Equations
  • Integrals
  • Mathematical Analysis
  • Refractive Index
  • Sea Water
  • Short Circuits
  • Transmission Lines
  • Water

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering

Technology Areas

  • Microelectronics
  • Space