Broadband electromagnetic field simulator
CA 2047999 C · Owner: National Research Council Of Canada · Inventors: Podgorski, Andrew S.; Gibson, Gary A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A broadband electromagnetic field simulator having an open horn TEM (transverse electromagnetic) waveguide coupled to launch energy in a strip line formed, between a forwardly extending plate section and a ground plane. The test volume is, located outside the horn between the forwardly extending plate section and the ground, plane. The plate section which functions as a radiating element initially extends parallel, to the ground plane and then curves downwardly to terminate adjacent it. In an alternative embodiment the plate section extends upwardly initially with an , exponential, configuration and then forwardly to terminate at a vertical grounded wall , faced with, anechoic material. …
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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 July 30, 1991 and granted October 31, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 30, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 30, 2013.
- 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.