ALEXANDRIA, Va., April 15 -- United States Patent no. 12,603,407, issued on April 14, was assigned to EUROPEAN SPACE AGENCY (ESA) (Paris).

"Compact feed system with developable waveguide H-plane directional coupler" was invented by Nelson Fonseca (CV Noordwijk, Netherlands).

According to the abstract* released by the U.S. Patent & Trademark Office: "A compact feed system (600) is provided which comprises an orthomode transducer or junction (400) and a waveguide H-plane directional coupler (100). The waveguide H-plane directional coupler may comprise two hollow waveguide sections (110, 120) and a coupling section (130) arranged in between the two hollow waveguide sections for coupling a signal from one hollow waveguide section to another h...