The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 07, 2002
Filed:
Dec. 15, 2000
Karl-Heinz Reimann, Langenhagen, DE;
Michael Kammer, Bad Nenndorf, DE;
Alcatel, Paris, FR;
Abstract
An antenna intended for radiating and receiving electromagnetic waves and including a parabolic reflector and an exciter, which is designed as a sub-reflector and which is attached in the focal point of the reflector at the end of a waveguide, guided through the center of the reflector. On the backside of the reflector a radio box, containing electric and electronic components, is attached to the waveguide, which is connected to a transmitter-receiver. To increase the transmission capacity, a polarization diplexer is provided between the radio box and the waveguide for simultaneous transmission of two orthogonal, linearly polarized waves. The diplexer has first and second inputs with an essentially rectangular clear cross section and an output, which can be attached to the waveguide. In the polarization diplexer there are two waveguide segments, one of which runs linearly between the first input and the output of the polarization diplexer, whereas the other, starting as a 90°0 curve at the second input of the polarization diplexer, empties into the linear waveguide segment in the course of the linear waveguide segment. The linear waveguide segment is rotated by 90° in the input area so that the large axes of the two inputs of the polarization diplexer that lie in the same plane are at right angles to each other.