Travelling wave tube with band pass slow wave structure whose frequency characteristic changes along its length
阅读：390发布：2022-12-15
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1. A BACKWARD WAVE TRAVELLING WAVE TUBE HAVING AN ELECTRON GUN, A COLLECTOR ELECTRODE POSITIONED TO RECEIVE THE ELECTRONS OF AN ELECTRON BEAM PROJECTED FROM SAID GUN, AND INTERMEDIATE BETWEEN THE GUN AND THE COLLECTOR ELECTRODE, A SERIES OF PARTITION MEMBERS TRANSVERSE TO THE ELECTRON BEAM PATH AND EACH HVING A MAIN HOLE POSITIONED TO PASS SAID BEAM, ALL SAID MAIN HOLES BEING ALIGNED, AND A FURTHER APERTURE WHICH IS OFFSET WITH RESPECT TO THE MAIN HOLE, ALL SAID FURTHER APERTURES BEING ALIGNED WITH AN ALIGNMENT SUBSTANTIALLY PARALLEL TO THE MAIN HOLE ALIGNMENT, THE FURTHER APERTURES REDUCING IN SIZE FROM PARTITION MEMBER TO PARTITION MEMBER FROM A MAXIMUM SIZE IN A PARTITION MEMBER NEARER THE COLLECTOR ELECTRODE TO A MINIMUM SIZE IN A PARTITION MEMBER NEARER THE GUN.
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