Patent · US Expired

Filter for electromagnetic waves

US3973226A · kind A · utility

18Cited by
2References
36Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 12, 1974
Grant dateAug 3, 1976
Priority date
Expiry dateJul 12, 1994

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01P1/2084
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

A plural circuit filter for electromagnetic waves, especially microwaves, of the type which comprises dielectric resonators, is provided wherein dielectric resonator disks or washers are positioned in a tubular metallic housing acting as a shield, the resonator disks being positioned centrally of the housing tube with the axes of the disks extending perpendicularly to the axis of the tube and the separate resonator disks being separated in the housing by apertured partitions which partly determine the coupling coefficient between adjacent circuits.

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