Method and Apparatus for Dispersive Signal Processing.

Abstract

The invention is an improved manufacturing technique for producing a certain class of Surface Acoustic Wave (SAW) devices, namely those having input and output transducers in close proximity. A much higher manufacturing yield results from eliminating the cutting of a slot in the substrate between input and output transducers as formerly done. This frequently destructive step is replaced by ion-milling of a deep groove between the ports and backfilling with a metal of proper configuration to provide electromagnetic shielding. The technique produces a new device that is at least equal to the prior art in rejection of unwanted couplings between input and output. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 27, 1983
Accession Number
ADD010445

Entities

People

  • Arthur Ballato
  • Elio A. Mariani

Organizations

  • United States Army

Tags

DTIC Thesaurus Topics

  • Acoustic Waves
  • Couplings
  • Electromagnetic Shielding
  • Inventions
  • Manufacturing
  • Piezoelectric Transducers
  • Rejection
  • Shielding
  • Signal Processing
  • Substrates
  • Surface Acoustic Wave Devices
  • Surface Acoustic Waves
  • Transducers
  • Waves

Readers

  • Microwave Engineering.
  • Military History / Militaries and War Studies