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. 13, 2013
Filed:
Sep. 05, 2008
Paddy Perottino, Tournefeuille, FR;
Philippe Lepeltier, Castanet, FR;
Paddy Perottino, Tournefeuille, FR;
Philippe Lepeltier, Castanet, FR;
Thales, Neuilly sur Seine, FR;
Abstract
The present invention relates to a multiband transmit-receive coupler-separator with a very wide band of the OMT ('OrthoMode Transducer') type for microwave-frequency telecommunications antennae. This coupler comprises a port for propagating all of the frequencies, a body and a port for propagating high-frequency bands, these three portions being coaxial, and wide-band coupling slots for propagating the low-frequency bands made in the body and each associated with a waveguide, and it is characterized in that its body joining the two ports has a shape of revolution the profile of which changes according to a multipolynomial law, constantly decreasing from the port with the largest cross section to the port with the smallest cross section. This coupler can operate in order to couple and separate very wide bandwidths (the overall use of this coupler-separator being more than one octave), and two or four wide-band coupling slots are necessary for the propagation of linear and circular polarizations after recombination.