Coaxial line to waveguide transition

Claim 1

A TRANSITION FOR COUPLING WAVEGUIDE SYSTEMS INCLUDING A COAXIAL TRANSMISSION LINE SEGMENT FOR CONNECTION TO ONE WAVEGUIDE SYSTEM; A RECTANGULAR WAVEGUIDE SEGMENT FOR CONNECTION TO A SECOND WAVEGUIDE SYSTEM, SAID WAVEGUIDE SEGMENT COMPRISING AT LEAST TWO OPPOSITELY DISPOSED WALLS; A COMDUCTIVE KNOB-LIKE MEMBER; AND A BARRIER PROVIDING A VACUUM TIGHT SEAL BETWEEN SAID SEGMENTS; SAID RECTANGULAR WAVEGUIDE SEGMENT BEING PROVIDED WITH AN APERTURE THROUGH ONE OF SAID WALLS; SAID COAXIAL TRANSMISSION LINE SEGMENT COMPRISING AN OUTER CONDUCTOR AND AN INNER CONDUCTOR HAVING A PORTION THEREOF EXTENDING BEYOND THE END OF SAID OUTER CONDUCTOR; SAID OUTER CONDUCTOR BEING POSITIONED WITH SAID END ADJACENT SAID ONE WALL IN SUCH A MANNER THAT SAID END TERMINATES AT SAID ONE WALL AND SAID INNER CONDUCTOR PORTION EXTENDS THROUGH THE APERTURE; SAID KNOB-LIKE MEMBER HAVING THE BASE THEREOF CONDUCTIVELY AFFIXED TO THE OTHER OF SAID WALLS IN A POSITION OPPOSITE TO SAID APERTURE AND HAVING THE UPPER PORTION THEREOF CONDUCTIVELY JOINED TO SAID INNER CONDUCTOR PORTION, SAID KNOBLIKE MEMBER BEING LARGER IN DIAMETER THAN SAID APERTURE; SAID KNOB-LIKE MEMBER HAVING AN ANNULAR GROOVE EXTENDING THEREAROUND AND IN CONCENTRIC RELATIONSHIP WITH SAID INNER CONDUCTOR PORTION; SAID BARRIER COMPRISING A CYLINDRICAL DIELECTRIC MEMBER OPEN AT BOTH ENDS THEREOF AND HAVING ONE END POSITIONED AND SEALED IN THE ANNULAR GROOVE AND THE OPPOSITE END EXTENDING AT LEAST TO SAID ONE WALL AND SEALED THERETO.