Development and Fabrication of Matched Longitudinal Acoustic Wave Transducers

Abstract

The design and fabrication of a matched pair of 4 microsec, wide bandwidth delay devices is described with operation over a 500 MHz bandwidth centered at 1.7 GHz. Design techniques are discussed which allow relatively low insertion loss (35 dB) with extremely flat frequency response (plus or minus 0.5 dB) and superior TTS (above 45 dB). The magnitude of transmission phase ripple relative to linear phase is considered both theoretically and experimentally. Construction in a constant-temperature oven for phase-stable operation is described. The characteristics of devices obtained in quantity production are estimated.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1970
Accession Number
AD0720820

Entities

People

  • T. Reeder
  • W. Sperry

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Accuracy
  • Acoustic Waves
  • Attenuators
  • Bandwidth
  • Broadband
  • Couplings
  • Delay Lines
  • Electronic Equipment
  • Films
  • Frequency
  • Insertion Loss
  • L Band
  • Losses
  • Thin Films
  • Transducers
  • Waves

Fields of Study

  • Physics

Readers

  • Microwave Engineering.
  • Thermal Physics or Thermal Science.