Device which improves the efficiency of a radiating system by means of parasite elements set on the ground plane
CA 2071253 A1 · Owner: Ascione, Giancarlo · Inventors: Lomaglio, S. Francesco; Ascione, Giancarlo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention regards a device which improves the efficiency of a radiating system by means of parasite elements formed on theground plane, which consist of half-wavelength dipoles (active elements) (1) and four directly fed slots (2) (parasite elements) where these slots are excited by the active elements Which are connected to supply line (4). The scope of the active is to control the radiating pattern of a dipole array through the slots(2). The invention pertain to the field of antennas and more, precisely to that of microwave antennas. It may be adopted in standalone or in integrated applications on reflections for air traffic control, where detection is performed in the S band, …
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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 15, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 15, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 15, 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.