Surface Wave Parametric Processors and Long Delay Lines.
Abstract
WHICH HAVE BEEN DEVELOPED. Section II describes thin-film waveguides for surface acoustic waves, of electric-field and slot types, having very low loss and low dispersion. They are well suited for use on wrap-around type surface wave delay lines. Section III deals with helical forms of wrap-around delay lines which provide passive, non-dispersive two-port operation. The construction of lines for one-half millisec time delays is described. Designs for larger delays are shown to be feasible, and designs for maximizing the amount of data storage per unit of delay line area are shown. Section IV is concerned with parametric signal processing, including cross correlation and pulse compression, covering terminal operating characteristics of surface wave versions of these devices operating at input frequency of 100 MHz. Substantial increase in dynamic range is described. Section V contains initial calculations and predictions with regard to incorporating extreme broadbanding techniques, as applied to interdigital transducers, into very long delay lines. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1973
- Accession Number
- AD0767549
Entities
People
- D. K. Winslow
- Gordon S. Kino
- Herbert John Shaw
- M. Chodorow
- W. L. Bond
Organizations
- Stanford University