Patent · US Expired

UHF bandpass filter

US4990869A · kind A · utility

3Cited by
5References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 1, 1989
Grant dateFeb 5, 1991
Priority date
Expiry dateNov 1, 2009

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01P1/2053
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

A UHF bandpass filter, comprising resonators, each of which is arranged in a respective cavity and which are coupled to one another via tracks etched on a printed circuit.

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