Radar antenna systems
CA 1111132 A · Owner: Siemens Aktiengesellschaft · Inventors: Jatsch, Werner; Brunner, Anton
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a doppler navigational radar antenna with automatic land-sea correction utilizing the production of two somewhat differently inclined mutually overlapping labe groups each having four lobes. The antenna comprises a plane radiation array group having individual radiators disposed in parallel rows. Each radiator having two ends which have respective feed points. Each radiator is either actually fed or fed by way of radiation at the feed points by a first pair of feed lines extending transverse to the rows of radiators and coupled thereto at the respective feed points at one end thereof and a second pair of feed lines extending transverse to the rows 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 October 20, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 20, 1998.
- 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.