Traveling fast-wave device

Claim 1

A TRAVELLING WAVE DEVICE COMPRISING: AN ANODE STRUCTURE; SAID ANODE STRUCTURE HAVING A PLURALITY OF PARALLEL AXIALLY-EXTENDING VANES DEFINING A PLURALITY OF UNCOUPLED ELECTROMAGNETIC WAVE CONDUCTING PATHS ARRANGED SIDE BY SIDE; MEANS COMMUNICATING WITH SAID ANODE STRUCTURE FOR SHIFTING THE PHASE OF WAVES IN ALTERNATELY DISPOSED PATHS WHEREBY WAVES IN ADJACENT PATHS ARE IN OPPOSITE PHASE; AN ELECTRON EMITTING CATHODE STRUCTURE COEXTENSIVE WITH AND SURROUNDING SAID ANODE STRUCTURE DEFININF A SUBSTANTIALLY CONTINUOUS INTERACTION SPACE THEREBETWEEN; MEANS FOR ESTABLISHING A MAGNETIC FIELD DIRECTED PARALLEL TO THE AXIS OF SAID ANODE STRUCTURE AND AN ELECTRIC FIELD DIRECTED RADIALLY TO SAID AXIS WHEREBY THE ELECTRONS FORM A SPACE CHARGE IN THE INTERACTION SPACE WHICH CIRCULATES SUBSTANTIALLY CIRCUMFERENTIALLY; MEANS FOR DIRECTING ELECTROMAGNETIC WAVES ALONG THE WAVE CONDUCTING PATHS IN AN AXIAL DIRECTION TO RESULT IN PHASE SHIFTED FRINGING ELECTRIC FIELDS BETWEEN DJACENT VANES EXTENDING INTO THE INTERACTION SPACE; SAID CROSSED MAGNETIC AND ELECTRIC FIELDS TOGETHER WITH SAID FRINGING ELECTRIC FIELDS IMPARTING A PHASE FOCUSING EFFECT TO THE ELECTRON SPACE CHARGE SUCH THAT THE CROSSOVER POINT OF SAID SPACE CHARGE RELATIVE TO SAID TRAVERSING WAVES IS IN VELOCITY SYNCHRONOUS RELATIONSHIP ALONG A PATH COAXIAL TO SAID WAVE PATHS WHEREBY SAID WAVES ARE AMPLIFIED BY THE NET FLOW OF ENERGY FROM THE ELECTRON SPACE CHARGE; AND MEANS FOR LAUNCHING SAID AMPLIFIED WAVES INTO SPACE DISPOSED AT ONE END OF SAID DEVICE.