Patent · US Expired

Magnetic apparatus including thin film YIG resonator

US4701729A · kind A · utility

4Cited by
7References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 6, 1985
Grant dateOct 20, 1987
Priority date
Expiry dateMar 6, 2005

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01F7/02
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

Disclosed herein is a magnetic apparatus comprising: a magnetic circuit including magnetic yoke and a magnet, with a magnetic gap formed in the circuit for forming a uniform d.c. bias magnetic field in the magnetic gap; a magnetic device made of magnetic material of certain composition and placed in the magnetic gap so that the device operates in the d.c. bias magnetic field; and a soft magnetic plate provided in the magnetic gas, the soft magnetic plate being made of magnetic material having composition substantially identical to the composition of the magnetic device.

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