Apparatus and method for dividing/combining microwave power from an odd number of transistor chips
CA 2067655 A1 · Owner: Khandavalli, Chandra · Inventors: Khandavalli, Chandra
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
25307-293, Abstract of the Invention, A power divider/combiner circuit is disclosed for connecting to a single port, 2N+1 multi-cell monolithic transistor chips, each chip composed of an even number of cells. A planar binary tree type transmission line structure is provided having first and second ends for connecting 2P transmission line ports at the first end to the single port at the second end where N and P are each integers greater than or equal to 1 and, an equal number of cells are connected to each of the 2P transmission line ports. The value of P is chosen such that where R is an integer greater than 1, and C is the sum total of the number of cells in the 2N+1 chips. R cells are …
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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 April 30, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 30, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 30, 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.