HIGH GAIN ANTENNA TECHNIQUES. SYSTEM GAIN-TO-NOISE TEMPERATURE RATIO MEASUREMENTS ON AN ADAPTIVELY PHASED ARRAY

Abstract

Factors affecting the ultimate sensitivity of a typical microwave receiving system are discussed. It is shown that the receiver noise-temperature and the antenna gain-to-noise-temperature ratio are the dominant parameters in determining system capabilities. Data is presented, along with the technique used to obtain the data, for the receiver noise temperature, the antenna gain, and the antenna noise temperature for each element of the array. An expression is developed for the gain-to-noise-temperature ratio of the array and is shown to be equivalent to an enhancement factor operating on the individual element gain-to-noise-temperature ratio. The effects of system parameter variations are studied and typical values of enhancement factor are calculated. It is concluded that for minor variations in parameters the enhancement factor is affected very little.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1966
Accession Number
AD0630872

Entities

People

  • Delmer D. Hayes

Organizations

  • Ohio State University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Amplifiers
  • Antenna Feeds
  • Antennas
  • Artificial Satellites
  • Calibration
  • Classification
  • Coaxial Cables
  • Contracts
  • Figure Of Merit
  • Measurement
  • Networks
  • Parametric Amplifiers
  • Phased Arrays
  • Sensitivity
  • Standards
  • Universities

Fields of Study

  • Engineering
  • Physics

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Phased Array Antenna Design.