MSSW (Magnetostatic Surface Waves) Delay Line Based Oscillators,

Abstract

The present paper reports an experimental study of magnetostatic-wave (MSW) delay-line based oscillators utilizing magnetostatic surface waves (MSSW's) in epitaxial YIG films. A novel approach at narrowbanding the delay line was realized through the use of lifted transducers. It is found that the tuning range for single-mode operation is limited primarily by the electrical length of the circuit external to the delay line with frequency jumping occurring everytime this electrical length changed by 360 deg. A maximum tuning range of about 600 MHz was obtained, with this range limited primarily by the AVANTEK GaAs FET amplifier that was used whose electrical length was equivalent to about 45cm of air transmission line. It is concluded that, if the electrical length of the external circuit is sufficiently reduced (ideally made zero), single-mode operation over an octave bandwidth or more is possible. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1983
Accession Number
ADP002516

Entities

People

  • J. P. Parekh
  • V. Lander

Tags

DTIC Thesaurus Topics

  • Amplifiers
  • Bandwidth
  • Delay Lines
  • Electronic Amplifier
  • Electronic Equipment
  • Electronics
  • Field Effect Transistors
  • Frequency
  • Frequency Shift
  • Oscillators
  • Pennsylvania
  • Semiconductor Devices
  • Solid State Electronics
  • Surface Waves
  • Transmission Lines
  • Waves

Readers

  • Electronics Engineering
  • Microwave Engineering.
  • Semiconductor Device Technology