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. 11, 2018
Filed:
Oct. 24, 2014
Insttut Français DE Recherche Pour L'exploitation DE LA Mer—ifremer, Issy-les-Moulineaux, FR;
François Le Pennec, Porspoder, FR;
Christian Gac, Saint-Renon, FR;
Hector Fabian Guarnizo Mendez, Chaparral, CO;
Christian Person, Saint-Renan, FR;
Ronan Apprioual, Brest, FR;
Raymond Jezequel, Locmaria-Plouzane, FR;
Serge Pinel, Brest, FR;
INSTITUT FRANÇAIS DE RECHERCHE POUR L'EXPLOITATION DE LA MER—IFREMER, Issy-les-Moulineaux, FR;
Abstract
The present invention relates to an underwater radio frequency antenna able to radiate in an underwater or equivalent propagation medium. It comprises a hollow conducting tube forming a resonant cavity, said conducting tube having an open end and a closed end, means of excitation of said resonant cavity which area able to be fed with signals and are arranged in such a way that the resonant cavity emits an electromagnetic radiation through said open end, at least one layer of dielectric material filling at least partially said resonant cavity so as to close the open end of the resonant cavity and render said cavity leaktight in relation to the underwater medium and to allow said electromagnetic radiation to pass through.