Broadband continuously flared notch phase-array radiating element with controlled return loss contour
CA 2063147 A1 · Owner: Villeneuve, Alfred T. · Inventors: Villeneuve, Alfred T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An array of flared notch radiating elements respectively a first planar metallic conductor having a first contoured edge extending from a feed line a second planar, metallic conductor co-planar with the first planar metallic conductor and having a second contoured edge adjacent the first contoured edge and extending from the feed line. The contoured edges diverge from each other with distance from the feed line and are shaped to provide a high-pass Tchebyscheff-like reflection coefficient versus frequency characteristic.
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 March 16, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 16, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 16, 2014.
- 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.