THE CUT-OFF WAVELENGHTS AND POWER-VOLTAGE IMPEDANCES OF COMPOSITE WAVEGUIDES FOR THE FUNDAMENTAL MODE

Abstract

The Rayleigh-Ritz method is used to solve the eigenvalue problem for electromagnetic waves propagating through a waveguide of a non-simple cross section. The method is applied to obtain the cut-off wavelength and the power-voltage impedance for the fundamental mode (that equivalent to the H10 mode in rectangular waveguide and the H11 mode in circular waveguide for a waveguide with semicircular side walls and flat top and bottom walls, and for a truncated-circular waveguide. Numerical results are given for both waveguides, and supporting experimental evidence is adduced for the waveguide with semicircular sides and flat top and bottom walls, for aspect ratios of 0.302 and 0.702. The cut-off wavelengths obtained are within 3% while the power-voltage impedances are within 6% of their respective exact values.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1961
Accession Number
AD0256554

Entities

People

  • G. R. Valenzuela

Organizations

  • Johns Hopkins University

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Aircrafts
  • Aspect Ratio
  • Eigenvalues
  • Electronics
  • Electronics Laboratories
  • Engineering
  • Equations
  • Guided Missiles
  • National Security
  • New Jersey
  • New York
  • Procurement
  • Radiation
  • Security
  • Standards
  • Systems Engineering

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Structural Dynamics.
  • Theoretical Analysis.