Multi-port, multi-frequency microwave combiner with overmoded square waveguide section
CA 1207396 A · Owner: Andrew Corporation · Inventors: Saad, Saad S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multi-port multi-frequency combiner comprising a main waveguide having a cross-section in the shape of a right-angle parallelogram and dimensioned to simultaneously propagate co-polarized signals in different frequency bands and at least one signal that is orthogonally polarized with respect to the co-polarized signals, at least a portion of the waveguide being overmoded; a plurality of junctions spaced along the length of the main waveguide for coupling selected signals in the different frequency bands in and out of the waveguide at least one of the, junctions being located in an overmoded portion of the waveguide each of the junctions having an unbalanced or pseudo-balanced feed with …
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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 July 8, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 8, 2003.
- 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.