THE INTERCHANGE OF SOURCE AND DETECTOR IN MICROWAVE MEASUREMENTS

Abstract

The technique for interchanging generator and detector in the impedance measurement of micro wave one-ports is a useful, known procedure often applied when low powers are indicated. The necessary and sufficient conditions for the validity of such measurements are critically examined and direct extensions of this technique to similar measurements of reciprocal two-ports are given. A completely separate analysis is necessary when such an interchange is made in the case of an interference bridge to be used for the determination of the scattering parameters of general (active or passive and reciprocal or nonreciprocal)) two-ports. This analysis is presented in detail. It results in a new low- power-level version of a method of measuring general two ports given in an earlier paper. The measurement technique and the subsequent data analysis of the two versions are found to be identical, except that the two scattering parameters S12 and S21 appear in interchanged positions.

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Document Details

Document Type
Technical Report
Publication Date
Apr 11, 1963
Accession Number
AD0403390

Entities

People

  • H. M. Altschuler

Organizations

  • New York University Tandon School of Engineering

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Air Force
  • Coefficients
  • Detectors
  • Generators
  • Impedance
  • Measurement
  • Microwave Bridges
  • Microwaves
  • Military Research
  • Phase Measurement
  • Power Levels
  • Scattering
  • Scientific Research
  • Standing Waves
  • Traveling Waves
  • Waves

Readers

  • Instructional Design and Training Evaluation.
  • Microwave Engineering.
  • Systems Analysis and Design