Patent · US Expired

Acoustic ridge waveguide

US3974464A · kind A · utility

5Cited by
0References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 15, 1974
Grant dateAug 10, 1976
Priority date
Expiry dateMar 15, 1994

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N2291/0427
  • WIPO fieldOther consumer goods
  • WIPO sectorOther fields

Abstract

An improved acoustic waveguide structure which comprises a ridge waveguide disposed in a horizontal direction extending outwardly from a substrate. The horizontal orientation of the waveguide which is in the form of a ledge results in particle motion of the ledge predominantly normal to the substrate plane with the largest motion at the free edge of the ledge and almost no motion in the substrate, thereby permitting a plurality of such structures to be densely packed on a common substrate.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.