A compact printed antenna for radiation at low elevation
CA 2203359 A1 · Owner: Brachat, Patrice · Inventors: Brachat, Patrice
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a flat printed antenna for transmission and/or reception of miclowave signals of the type that includes particularly - a plate of dielectric substrate, - an earth plane formed by a first conductor layer deposited on a first face of the plate of dielectric substrate, - a radiating element (30) formed by a second conductor layer deposited on a second face of the plate of dielectric substrate - means of feeding the antenna, This antenna has a fundamental mode in which it generates a radiation pattern having a maximum in the direction perpendicular to the plane containing the radiating element, and at least one higher mode, in which it generates a radiation pattern …
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 April 22, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 22, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 22, 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.