Patent · US Expired

Magnetostatic wave device and chip therefor

US4992760A · kind A · utility

10Cited by
5References
13Claims
0Family size

Assignees

Inventors

Key dates

Filing dateNov 21, 1988
Grant dateFeb 12, 1991
Priority date
Expiry dateNov 21, 2008

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03H2/001
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

A chip for a magnetostatic wave device comprising; a base substrate consisting of a dielectric monocrystalline base plate and a ferrimagnetic monocrystalline film formed on the base plate; an excitation means for magnetostatic waves formed on the ferrimagnetic film when it is given a bias magnetic field and high frequency electric signals; and a reflection means to reflect the excited magnetostatic wave toward the center portion of the film before it reaches at end portions of the ferrimagnetic film.

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