Patent · US Expired

Coaxial transmission line crossing

US4533883A · kind A · utility

6Cited by
3References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 23, 1983
Grant dateAug 6, 1985
Priority date
Expiry dateFeb 23, 2003

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01P3/06
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

A crossover for a microwave circuit constructed within a plate includes intersecting square-shaped coaxial transmission lines, each of which is formed by machining channels within the plate, with square-shaped central members disposed along the axes of the channels and insulated from the side walls thereof. The plate is made of an electrically conducting material to provide for the structure of a coaxial line of which the members thereof have a rectangular, preferably square-shaped, cross-section. At the intersection of two of the transmission lines, a septum is placed, the septum being parallel to the plane of the plate. The septum is located halfway between the top and the bottom portions of the channels. An inner, or central, conductor segment of reduced cross-section is slung beneath the termini of rod-shaped members in one line so as to pass beneath the septum and to provide for the structure of a coaxial transmission line beneath the septum. A corresponding conductor segment is located above the septum and disposed on termini of the central conductor members of the other one of the intersecting transmission lines. A cover encloses the channels of the plate. The crossover segm…

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