Geodesic dome/lens antenna
CA 1192659 A · Owner: He Holdings, Inc. · Inventors: Uyeda, Harold A.; Du Fort, Edward C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An antenna of the geodesic lens type is disclosed. The antenna structure is based on optical principles and provides wide angle scanning of a narrow beam. The exact shape of the domed structure 10 is found by solving an integral equation and results in nearly perfect focus in the scan plane. A dielectric loaded flared horn 20 is attached to the feed circle 15 of the domed structure and focusses energy in the plane orthogonal to the scan plane. The cross sectional shape of the outer curvature of the dielectric 21 is elliptical. Since the structure is circularly symmetrical, constant beam shape wide, angle scanning, and a rapid scan rate are possible.
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
- Granted August 27, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 27, 2002.
- 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.