Patent · US Expired

Antenna with a main reflector and a subreflector

US4827277A · kind A · utility

10Cited by

3References

3Claims

0Family size

Assignee

Standard Elektrik Lorenz AG · DE

Inventors

Klaus Becker · Wetter, DE
Gerhard Greving · Untergruppenbach, DE

Key dates

Filing date	Aug 7, 1986
Grant date	May 2, 1989
Priority date	—
Expiry date	Aug 7, 2006

Classification

Technology area (CPC H)Electricity
CPC primaryH01Q19/025
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

The antenna has a main reflector (1), a subreflector (4a, 4b, 5a, 5b), and a feed radiator (2) which are all rotationally symmetric about a common axis (10). In a section in the direction of this axis of symmetry (10), the subreflector has the shape of two curves meeting in the axis of symmetry. Seen from the feed radiator, these curves are concave. Each of the two curves has at least one step (6a, 6b) for matching the feed radiator to the transmitter or receiver.

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