POWER TRANSFER BETWEEN TWO ANTENNAS WITH SPECIAL REFERENCE TO POLARIZATION

Abstract

The literature abounds with examples of a convenient equation ('the beacon equation') for calculating the free-space power transfer between two widely spaced radio antennas haveing polarizations that are matched for maximum power transfer. On the other hand, convenient equations for making such calculations where the polarizations are not matched are very scarce. In this paper the well known beacon equation has been combined with a published (but relatively little known) general equation for polarization mismatch loss, so as to yield a complete general equation for calculating the power transfer between two widely spaced antennas in free-space. For convenience, the portion of the general power transfer equation that accounts for polarization mismatch loss has been reduced to yield a special equation for each of the five limiting cases. Also given are discussions of polarization problems and solutions in radio and radar, and a discussion of antenna radiation field representation methods and their use in calculating the power transfer between two antennas.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1965
Accession Number
AD0637134

Entities

People

  • Beuhring W. Pike

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Aircrafts
  • Antenna Radiation Patterns
  • Birds
  • Computer Programs
  • Coordinate Systems
  • Equations
  • Gain
  • Polarization
  • Power Gain
  • Radar
  • Radar Beacons
  • Radiation
  • Radio Links
  • Radio Waves
  • Spacecraft
  • Standards

Readers

  • Calculus or Mathematical Analysis
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Phased Array Antenna Design.

Technology Areas

  • Space