Antenna array
CA 2228548 C · Owner: Kathrein-Werke Kg · Inventors: Klinger, Georg; Gabriel, Roland; Gottl, Max
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns an antenna array for simultaneously receiving or simultaneously emitting electromagnetic waves with two linear orthogonal polarizations, the antenna array comprising a decoupling arrangement (17) between adjacent radiator modules (1). The decoupling arrangement is provided between two radiator modules (1) which are adjacent in the mounting direction (21). The object of the invention is to improve the antenna array by providing between two adjacent radiator modules (1) a decoupling structural element (17) of which at least the longitudinal component extends in the mounting direction (21), the length of this longitudinal component being greater than or equal to …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed June 5, 1997 and granted January 14, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 5, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 5, 2019.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.