The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 23, 2021
Filed:
Aug. 27, 2019
Airbus Italia S.p.a., Rome, IT;
Alfredo Catalani, Rome, IT;
Fabio Maggio, Rome, IT;
Vincenzo Pascale, Rome, IT;
Piero Angeletti, Rome, IT;
Giovanni Toso, Rome, IT;
Daniele Petrolati, Rome, IT;
AIRBUS ITALIA S.P.A., Rome, IT;
Abstract
A directional waveguide coupler () has four input ports and four output ports. Each input port is coupled to each of the output ports. The directional coupler () includes a first coupler having two waveguides (W, W) coupled to each other by a first slot array (S), defined in a first wall () common to the two waveguides (W, W) of the first coupler. A second coupler has two waveguides (W, W), coupled to each other by a second slot array (S), defined in a second wall () common to the two waveguides (W, W) of the second coupler. The first and second slot arrays (S, S) lie on a first common plane. The first and second couplers are coupled to each other by a third slot array (S) and a fourth slot array (S), which lie on a second common plane perpendicular to the first common plane.