Apparatus for determining the aperture illumination of a phased-array antenna
CA 2104261 C · Owner: Mundt, Rolf-Hans · Inventors: Mundt, Rolf-Hans; Kolzer, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for determining the aperture illumination of a phased-array antenna is disclosed which evaluates a monitor signal obtained from a first output (A1) of a monitor waveguide (MH) and i.s also suited for antennas having a greatly restricted scan angle coverage such as elevation antennas in MLS systems. To obtain information from a portion of the monitor signal corresponding to at least one cycle of the antenna's far-field pattern, portions of the monitor signal which are visible at different monitor angles are joined together for evaluation. This is accomplished by also evaluating signals obtained from a second output of the monitor waveguide which is spatially separated from the …
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
- Filed August 17, 1993 and granted December 18, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 17, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 17, 2015.
- 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.