Patent · US Expired

Tunable inductor

US5239289A · kind A · utility

13Cited by
9References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 4, 1991
Grant dateAug 24, 1993
Priority date
Expiry dateSep 4, 2011

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01F17/0006
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A compact, wide range inductor capable of being trimmed to a desired frequency value, comprising at least two individually tunable inductive elements of different resolution, disposed upon an insulative support. The inductor is usually placed within a hybrid circuit and trimmed after component population.

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