THE SUSCEPTANCE OF A CIRCULAR OBSTACLE TO AN INCIDENT DOMINANT CIRCULAR- ELECTRIC WAVE

Abstract

Lower- and upper-bound expressions were obtained for the susceptance of a circular obstacle excited by the TE sub01 mode in a circular wave guide. The solutions were obtained by a variational method. Experiments showed the TE sub01 mode to be about 60 db above extraneous modes over a free-space, wave-length range of 7.30 to 11.90 cm. The discrepancies between theoretical and experimental results are attributed to finite thickness and conductivity of the obstacle, ellipticity of the circular wave guide, presence of lower-order propagating modes, and typical errors involved in the measurement of admittance by the resonance-curve method.

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Document Details

Document Type
Technical Report
Publication Date
Jun 15, 1952
Accession Number
AD0006566

Entities

People

  • L.s. Sheingold

Organizations

  • Office of Naval Research

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Antennas
  • Coupled Antennas
  • Detectors
  • Diffraction
  • Electric Fields
  • Electromagnetic Radiation
  • Equations
  • Integral Equations
  • Magnetic Fields
  • Measurement
  • New York
  • Radiation
  • Radiation Patterns
  • Scattering
  • Transmission Lines
  • Two Dimensional
  • Wave Propagation

Readers

  • Calculus or Mathematical Analysis
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Microwave Engineering.

Technology Areas

  • Space
  • Space - Orbital Debris