Title:
【発明の名称】リン酸チタニルカリウム及び類似体を使用する音響周波数混合装置
Document Type and Number:
Japanese Patent JPH09505955
Kind Code:
A
Abstract:
Acoustic frequency mixing devices for controlling high frequency signals by the generation of acoustic waves are disclosed. The devices include (a) a crystalline substrate of MTiOXO4 (wherein M is K, Rb, Tl and/or NH4 and X is P and/or As) having a surface with at least two input areas; and (b) an input interdigital transducer deposited on each of at least two signal input areas of said substrate surface, each IDT suitable for connection to a source of electric signal and for inverse piezoelectrically generating acoustic waves (e.g., SAWs or B-G waves) in the substrate. For controlling high frequency electrical signals, the substrate surface has a output area and the device typically includes an output electrode (e.g., an interdigital transducer) deposited on the signal output area of said substrate surface suitable for piezoelectrically detecting acoustic waves obtained by mixing the frequencies of waves generated by at least two input interdigital transducers, and for connecting the output electrode to an electric signal responsive device.
Inventors:
Chiyu, David Ko-Thailand
Application Number:
JP51183794A
Publication Date:
June 10, 1997
Filing Date:
September 30, 1994
Export Citation:
Assignee:
E. I. Dupont Do Nemour & Company
International Classes:
G06G7/195; H03H9/145; H03H9/25; G02F1/11; (IPC1-7): H03H9/145; G02F1/11; H03H9/25
Attorney, Agent or Firm:
Heiyoshi Odashima (1 person outside)