Accession Number:

ADD010445

Title:

Method and Apparatus for Dispersive Signal Processing.

Descriptive Note:

Patent application,

Corporate Author:

DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s):

Report Date:

1983-07-27

Pagination or Media Count:

15.0

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

Subject Categories:

  • Line, Surface and Bulk Acoustic Wave Devices
  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE