Modularized contoured beam phased array antenna
CA 1256555 A · Owner: Hughes Aircraft Company · Inventors: Crail, Timothy A.; Shapiro, Sanford S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A modular direct radiating antenna system for producing highly contoured beam patterns is disclosed. The system comprises a plurality of array modules each having a, number of radiation elements. An intramodule feed network is provided to communicate RF energy between a module port and the radiation elements in an equal-power equal-phase, relationship. A second feed network an intermodule feed, network, is provided to communicate RF energy between an antenna system port and the respective module ports. The second feed network is adapted to couple the power and adjust the electrical path lengths so that the RF power communicated between the respective module ports and the system port is of …
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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
- Granted June 27, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 27, 2006.
- 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.