Folded cylinder gaseous discharge device

Claim 1

A RESONANT WINDOW ASSEMBLY FOR MICROWAVE TRANSMISSION CONTROL DEVICES ASSOCIATED WITH HOLLOW-PIPE RECTANGULAR WAVEGUIDE STRUCTURE FOR PROPAGATION OF HIGH POWER ELECTROMAGNETIC ENERGY, SAID ASSEMBLY COMPRISING A METALLIC PLATE MEMBER DEFINING A CENTRALLY LOCATED RECTANGULAR OPENING, A FOLDED CYLINDER OF A DIELECTRIC MATERIAL ENCLOSING SUBSTANTIALLY ALL OF SAID RECTANGULAR OPENING WITH ITS AXIS DISPOSED WITHIN THE PLANE OF THE PLATE MEMBER, SAID FOLDED CYLINDER COMPRISING A PLURALITY OF CONCENTRICALLY DISPOSED DIELECTRIC CYLINDERS SEALED TOGETHER AT ONE OF THE OUTER ENDS TO FORM A HERMETICALLY SEALED ENVELOPE, AN IONIZABLE GASEOUS ATMOSPHERE CONTAINED WITHIN SAID ENVELOPE, AND ELECTRODE MEANS FOR PARTIAL IONIZATION DISPOSED ADJACENT AT LEAST ONE END OF SAID ENVELOPE AT A POINT NEAREST TO THE INCIDENT HIGH POWER PROPAGATED IN THE WAVEGUIDE, SAID ELECTRODE MEANS COMPRISING A PLURALITY OF CONDUCTIVE WIRE MEMBERS EXTENDING INTO SAID ENVELOPE, WITH THE INNER ENDS THEREOF OPPOSITELY DISPOSED TO DEFINE A DISCHARGE GAP AND ADAPTED FOR ENERGIZATION BY DIRECT CURRENT VOLTAGE SUPPLY MEANS EXTERNALLY CONNECTED TO SAID ELECTRODES.