Measuring Techniques for the Calibration of Standard Gain Horn Antennas

Abstract

The main objective of this study is to accurately determine the far- field gain of microwave horn antennas from measured, on-axis, near-field coupling. In order to determine the gain, it is important to first locate the amplitude center of each horn antenna. Two methods of determining far-field horn antenna gain are presented. Both involve determining the amplitude center location. The first method involves only simple calculations based on measured coupling and Friis' transmission formula. The second method is more complicated but results in more accurate gain calculations, especially for larger horns. This second method is based on measured coupling, Friis' transmission formula, and theoretical near-field corrections. Included is a chapter on accurate coupling measurement techniques as well as a chapter on on principal plane radiation patterns of horn antennas.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1980
Accession Number
ADA164594

Entities

People

  • Errol K. English

Organizations

  • Ohio State University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Anechoic Chambers
  • Calibration
  • Computer Programs
  • Computers
  • Far Field
  • Frequency
  • Geometry
  • Measurement
  • Near Field
  • Power Meters
  • Radiation
  • Radiation Patterns
  • Standards
  • Transmitting
  • Two Dimensional
  • Waveguides
  • Waves

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering