MICROWAVE ACOUSTIC DELAY LINE AND RELATED ACTIVE DEVICES.

Abstract

Theoretical and experimental investigations of electroacoustic interactions were conducted as a basis for development of active and passive acoustic devices. To demonstrate these phenomena, breadboard models of a 60 Mc/sec electroacoustic amplifier with a 75 db maximum acoustic gain, a 200 micro-sec lossless delay line operating at 60 Mc/sec, and a 1 Mc/sec acoustoelectric oscillator, were constructed. Both bonded quartz and integral transducers were investigated. An integral delay line and an amplifier demonstrate the use of compensated-layer CdS transducers. Thermal effects are discussed including methods of heat sinking the crystals for use in continuous wave (CW) devices. Combination of Hall and negative-resistance elements were breadboarded for controlling frequency and impedance. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1965
Accession Number
AD0613562

Entities

People

  • F. Hickernell
  • M. Medina
  • N. G. Sakiotis
  • W. Brendecke

Organizations

  • Motorola Mobility

Tags

DTIC Thesaurus Topics

  • Acoustic Delay Lines
  • Amplifiers
  • Breadboard Models
  • Continuous Waves
  • Delay Lines
  • Frequency
  • Impedance
  • Integrals
  • Microwaves
  • Models
  • Oscillators
  • Resistance
  • Transducers

Fields of Study

  • Physics

Readers

  • Electronics Engineering
  • Materials Science and Engineering.
  • Microwave Engineering.