The Effects of Width Modes in Magnetostatic Forward Volume Wave Propagation

Abstract

Delay line amplitude ripple and out-of-band filter response in magnetostatic forward volume wave devices are shown to be due to the transduction and propagation of width modes, which at low wavenumbers have different phase and group velocities, but at high wavenumbers become degenerate. Various techniques which minimize the effects of width modes are suggested and results obtained on the preferential attenuation of higher order width modes by thin resistive strips are described.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1983
Accession Number
ADP000937

Entities

People

  • J. D. Adam

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Aluminum
  • Attenuation
  • Delay Lines
  • Frequency
  • Group Velocity
  • Insertion Loss
  • Losses
  • Magnetic Fields
  • Radiation Resistance
  • Surface Waves
  • Thickness
  • Transducers
  • Transmission Loss
  • Wave Propagation
  • Waves

Fields of Study

  • Physics

Readers

  • Microwave Engineering.
  • Plasma Physics / Magnetohydrodynamics