Junction between circular wave-guide and two rectangular wave-guides of different polarizations

Claim 1

IN A WAVE GUIDE SYSTEM, A JUNCTION ARRANGEMENT BETWEEN A FIRST WAVE GUIDE OF RECTANGULAR CROSS-SECTION, A SECOND WAVE GUIDE OF RECTANGULAR CROSS-SECTION, AND A THIRD WAVE GUIDE OF CIRCULAR CROSS-SECTION COMMUNICATING WITH THE ENDS OF SAID FIRST AND SECOND WAVE GUIDES AT POSITIONS SPACED AXIALLY ALONG SAID THIRD WAVE GUIDE, THE AXIS OF EACH GUIDE BEING PERPENDICULAR TO THOSE OF BOTH THE OTHERS AND THE BROADER DIMENSION OF THE END OF EACH RECTANGULAR GUIDE COMMUNICATING WITH THE CIRCULAR GUIDE BEING PARALLEL TO THE AXIS OF THE CIRCULAR GUIDE, SAID ARRANGEMENT COMPRISING A REFLECTION-FREE DEVICE CLOSING ONE END OF SAID CIRCULAR GUIDE, A FIRST MEMBER LOCATED IN THE CIRCULAR GUIDE BETWEEN SAID END DEVICE AND THE NEAREST RECTANGULAR GUIDE, SAID MEMBER REFLECTING A FIRST WAVE WHOSE POLARIZATION PLANE IS PERPENDICULAR TO THE BROADER DIMENSION OF SAID NEAREST RECTANGULAR GUIDE WHILE NOT DISTURBING THE PROPAGATION OF A SECOND WAVE WHOSE POLARIZATION PLANE IS PERPENDICULAR TO THAT OF SAID FIRST WAVE, AND A SECOND MEMBER SIMILARR TO THE FIRST MEMBER LOCATED IN THE CIRCULAR GUIDE BETWEEN THE POSITIONS AT WHICH SAID CIRCULAR WAVE GUIDE COMMUNICATES WITH SAID RECTANGULAR GUIDES, SAID SECOND MEMBER BEING IN A DIRECTION PERPENDICULAR TO THAT OF SAID FIRST MEMBER, THE EQUIVALENT SHORT-CIRCUIT PLANE OF EACH OF SAID MEMBERS BEING, RESPECTIVELY, IN COINCIDENCE WITH ONE OF THE CHARACTERISTIC PLANES OF THE ASSEMBLIES CONSTITUTED BY THE CIRCULAR GUIDE AND THE FIRST RECTANGULAR GUIDE ON THE ONE HAND AND BY THE CIRCULAR GUIDE AND THE SECOND RECTANGULAR GUIDE ON THE OTHER HAND, EACH OF SAID FIRST AND SECOND MEMBERS BEING CONSTITUTED BY A CONDUCTING SHEET DIAMETRICALLY DISPOSED IN THE CIRCULAR GUIDE, SAID SHEET HAVING A SHAPE SYMMETRICAL WITH RESPECT TO ITS LONGITUDINAL AXIS, ITS LOGITUDINAL DIMENSION BEING APPROXIMATELY CONSTANT AND ITS TRANSVERSE DIMENSION BEING AT ITS MINIMUM AT BOTH ENDS OF THE SHEET AND AT ITS MAXIMUM AT THE CENTER OF SAID SHEET.