公开(公告)号：US3254263A

公开(公告)日：1966-05-31

申请号：US32736863

申请日：1963-12-02

Applicant: VARIAN ASSOCIATES

Inventor： NELSON WALTER E

IPC: H01J25/12

CPC classification number: H01J25/12

公开(公告)号：US2939033A

公开(公告)日：1960-05-31

申请号：US69166257

申请日：1957-10-22

Applicant: VARIAN ASSOCIATES

Inventor： NELSON WALTER E

IPC: H01J3/02

CPC classification number: H01J3/027

公开(公告)号：US3054925A

公开(公告)日：1962-09-18

申请号：US78708259

申请日：1959-01-15

Applicant: VARIAN ASSOCIATES

Inventor： WALTER RICHARD L ,  NELSON WALTER E

IPC: H01J19/36 ,  H01J25/12

CPC classification number: H01J25/12 ,  H01J19/36 ,  H01J2893/0027

公开(公告)号：US3617799A

公开(公告)日：1971-11-02

申请号：US3617799D

申请日：1968-06-21

Applicant: VARIAN ASSOCIATES

Inventor： SCHMIDT ROBERT C ,  NELSON WALTER E

IPC: H01J23/213 ,  H01J25/10

CPC classification number: H01J23/213 ,  Y10T74/2107

Abstract: A multicavity microwave amplifier tube is disclosed. The tube includes a plurality of cavity resonators successively arranged along a beam path for successive electromagnetic interaction with the beam to produce output-amplified microwave energy. Translatable cavity tuners are provided within a plurality of the cavity resonators for tuning the frequency of the resonators. The external tuning structure includes a plurality of rotatable cam wheels mechanically interconnected for synchronous rotation. Each cam wheel includes a set of cams. A plurality of cam followers are connected to the cavity tuners and each includes a bearing surface for engaging one of the cams in one the set of cams for tuning the respective cavity resonators in accordance with the position of the respective cam in the set of cams on the cam wheel. Means are provided for disengaging the cam followers from the cams before rotation of the cam wheels to new tuner positions. A stop is provided for the preventing rotation of the cam wheels while the cam followers are in engagement with the cams to alleviate wear on the engaging surfaces of the cams and the cam followers, whereby the microwave amplifier tube can be precisely and repeatedly tuned to certain preselected channel frequencies within a band of frequencies.

公开(公告)号：US3209200A

公开(公告)日：1965-09-28

申请号：US2409860

申请日：1960-04-22

Applicant: VARIAN ASSOCIATES

Inventor： NELSON WALTER E ,  SMITH HARRY B

IPC: H01J23/207

CPC classification number: H01J23/207

公开(公告)号：US3122669A

公开(公告)日：1964-02-25

申请号：US2689160

申请日：1960-05-04

Applicant: VARIAN ASSOCIATES

Inventor： NELSON WALTER E

IPC: H01J19/74

CPC classification number: H01J19/74