Electron discharge device having lossy resonant elements disposed within the electromagnetic field pattern of the slow-wave circuit

Claim 1

A HIGH FREQUENCY ELECTRON DISCHARGE DEVICE INCLUDING A TRAVELLING WAVE INTERACTION REGION AND INCLUDING: MEANS FOR FORMING A STREAM OF ELECTRONS, SLOW-WAVE INTERACTION CIRCUIT MEANS DISPOSED ALONG SAID STREAM FOR ELECTROMAGNETIC INTERACTION WITH SAID STREAM OF ELECTRONS, AND MEANS DISPOSED AT THE DOWNSTREAM END OF SAID INTERACTION CIRCUIT MEANS FOR COLLECTING SAID ELECTRON BEAM, SAID SLOW WAVE INTERACTION CIRCUIT MEANS BEING DISPOSED ALONG SAID STREAM PATH FOR PROVIDING CUMULATIVE INTERACTION BETWEEN THE STREAM OF ELECTRONS AND WAVE OF R.F. ENERGY MOVING ON SAID SLOW WAVE INTERACTION CIRCUIT, SAID SLOW WAVE INTERACTION CIRCUIT MEANS BEING OF THE COUPLED CAVITY TYPE HAVING AT LEAST ONE LOSSY RESONANT ELEMENT DISPOSED THEREIN INTERNALLY OF AT LEAST ONE OF THE CAVITIES OF SAID COUPLED CAVITY SLOW-WAVE INTERACTION CIRCUIT MEANS, SAID AT LEAST ONE LOSSY RESONANT ELEMENT BEING RADIALLY DISPLACED FROM SAID STREAM OF ELECTRONS AND ASYMMETRICAL WITH RESPECT TO SAID STREAM OF ELECTRONS, SAID LOSSY RESONANT ELEMENT ADAPTED AND ARRANGED TO DISSIPATE R.F. ENERGY PRESENT ON SAID SLOW-WAVE INTERACTION CIRCUIT AT AT LEAST ONE FREQUENCY, SAID AT LEAST ONE INTERNALLY DISPOSED LOSSY RESONANT ELEMENT BEING PHYSICALLY DISPOSED WITHIN THE ELECTROMAGNETIC FIELD PATTERN OF THE OPERATING MODE OF THE DEVICE WITHIN SAID AT LEAST ONE CAVITY.