Title:
【発明の名称】音響波装置
Document Type and Number:
Japanese Patent JPS5832527
Kind Code:
B2
Abstract:
Acoustic waveguides, acoustic filters and acoustic reflectors are based upon the discovery of increased acoustic wave velocity in materials such as lithium niobate and lithium tantalate into which a metal such as titanium, nickel or chromium has been diffused. Velocity increases larger than 1 percent have been obtained; and negligible effect on acoustic loss is incurred thereby. The technique and the resulting devices result in a simpler structure than provided by the metallic strips or the ion beam etched surface regions of prior acoustic devices in which velocity perturbations of comparable magnitude have been desired.
Inventors:
RONARUDO UAANON SHUMITSUTO
Application Number:
JP6667676A
Publication Date:
July 13, 1983
Filing Date:
June 09, 1976
Export Citation:
Assignee:
WESTERN ELECTRIC CO
International Classes:
H03H9/145; B06B1/00; G10K11/24; G10K11/36; H03H3/08; H03H9/00; H03H9/02; H03H9/30; H03H9/64; H03H9/72; H04B11/00; (IPC1-7): H03H9/25; H03H9/64
Attorney, Agent or Firm:
Masao Okabe