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:
Aug. 03, 1982
Filed:
Jun. 17, 1980
Gunter Mohring, Langenhagen, DE;
Abstract
An improved directional antenna for microwave transmissions is disclosed comprising a paraboloidal main reflector, a waveguide feed having a first open end thereof positioned on the axis of the main reflector, and a second waveguide of the same size serially connected between the second open end of the waveguide feed and a transmission device such as a microwave transceiver. The waveguide feed has an elliptical cross-section throughout its axial length, thus providing an elliptically shaped first open end that in of itself and without separate horn attachment, functions as a feed energizer; while the second waveguide also has an elliptical cross-section of the same size, which in combination with such waveguide feed provides a microwave coupling to the transmission device that minimizes reflections, respectively matching problems, especially in the case of overmoded waveguide applications.