Patent · US Expired

Microwave frequency divider

US4968959A · kind A · utility

1Cited by
2References
5Claims
0Family size

Assignee

Inventor

Key dates

Filing dateSep 21, 1989
Grant dateNov 6, 1990
Priority date
Expiry dateSep 21, 2009

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03B2200/0092
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

An analog type of microwave frequency divider for dividing frequency by two. It comprises a common emitter transistor (8) and a feedback loop comprising a filter (9, 11) and a phase-adjusting inductor (12). The filter (9, 11) is tuned to half the input frequency (fe/2) and the transistor (8) operates in its non-linear region. The two inductors (11, 12) are made of microstrip. The divider also includes an output matching filter comprising a capacitance (14) and two inductors (15, 16) which are likewise both made of microstrip.

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