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:
Sep. 15, 2020
Filed:
Sep. 11, 2016
Antenna Research Associates, Beltsville, MD (US);
Sandeep Palreddy, Springfield, MA (US);
ANTENNA RESEARCH ASSOCIATES, Beltsville, MD (US);
Abstract
A dual band horn feed antenna system having a single combined antenna having a plurality of sub apertures in a collocated environment. The sub apertures are individually coupled to a Tx/Rx and dual polarized capable high band circular waveguide realizing a two band realization with separate Tx and Rx channels. The OMT is realized by a plurality of phase and amplitude balanced signals oriented in such a way as to create balanced & symmetric E and H fields within the coaxial guide. A radiating structure is provided to minimize cross coupling of individual bands. An OMT integrated with a coaxial waveguide base structure where the frequency ratio of the center to outer waveguide structures is within the range on excess of 3:1 or more and thereby enabling adjacent frequency band maximized operation. Adjacent frequency bands will typically require center conductor tubes in a coaxial arrangement to be about 2:1 and certainly less than 3:1 in many cases. Integrated filters on Tx and Rx ports are provided to maximize isolation. A mechanical interface structure allowing the physical freedom necessary for polarization match to incoming signals of arbitrary angle.