The In-Situ Calibration of a Bilateral Space-Fed Phased Array Antenna

Abstract

This report describes an in-situ technique to estimate the following parameters of a phased-array antenna: 1. the relative array-element excitation voltages, 2. the array-element tuning phases, and 3. the RF phase shifts at the array elements. This technique has several significant features. First, it involves the use of two auxiliary antennas. One is a passive antenna mounted close to the phased-array antenna. Its output is used to produce s reference phase for phase measurements. Second, it contains a technique to reduce the errors in phase estimates. Third, it takes note that beam steering uses phase sums of the form (phi k + beta kl), where phi k is the tuning phase for the k-th array element and Dkl is an RF phase shift of the array element, and pays special attention to reduce the errors associated with the estimates of these sums. Fourth, it assumes the use of a reasonably stable and strong CW source of commercially available quality. No other assumptions are made.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1983
Accession Number
ADA176069

Entities

People

  • E. K. Hung
  • N. R. Fines
  • R. M. Turner

Organizations

  • Communications Research Centre Canada

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Beam Steering
  • Calibration
  • Couplings
  • Distortion
  • Measurement
  • National Security
  • Noise
  • Phase Control
  • Phase Measurement
  • Phase Shift
  • Phased Arrays
  • Radar
  • Radar Receivers
  • Security
  • Steering
  • Transmission Lines

Fields of Study

  • Engineering
  • Physics

Readers

  • Life Cycle Cost Analysis
  • Phased Array Antenna Design.
  • Statistical inference.

Technology Areas

  • Space