公开(公告)号：US3665242A

公开(公告)日：1972-05-23

申请号：US3665242D

申请日：1970-07-01

Applicant: PHILIPS CORP

Inventor： DUBRAVEC VLADIMIR

IPC: H01J23/087 ,  H01J23/08

CPC classification number: H01J23/0873

Abstract: A permanent magnetic focusing device for periodically guiding the electron beams of multicavity klystrons comprising axially arranged magnets that are radially magnetized in the same sense.

公开(公告)号：US3588582A

公开(公告)日：1971-06-28

申请号：US3588582D

申请日：1969-09-08

Applicant: PHILIPS CORP

Inventor： DUBRAVEC VLADIMIR ,  HIRSCH KURT

IPC: H01J23/087 ,  H01J23/08

CPC classification number: H01J23/087

Abstract: A SYSTEM FOR PROVIDING A SPATIAL PERIODIC MAGNETIC FIELD FOR FOCUSING THE ELECTRON BEAM OF A HIGH-POWER KLYSTRON BY ARRANGING A NUMBER OF ANNULAR MAGNETIC RINGS HAVING AXIAL MAGNETIZATION IN THE SAME SENSE COAXIALLY AROUND THE DRIFT TUBES BETWEEN RESONANT CAVITIES.