公开(公告)号：US3078206A

公开(公告)日：1963-02-19

申请号：US79554759

申请日：1959-02-25

Applicant: US RUBBER CO

Inventor： SKURA WILLIAM A

IPC: B29C43/02 ,  B29C70/46 ,  B29D29/08 ,  H01J23/11 ,  H01J25/42

CPC classification number: B29D29/08 ,  B29C43/021 ,  B29C70/462 ,  H01J23/11 ,  H01J25/42 ,  Y10T156/1002 ,  Y10T156/1026 ,  Y10T156/1041

公开(公告)号：US3069587A

公开(公告)日：1962-12-18

申请号：US38202553

申请日：1953-09-24

Applicant: RAYTHEON CO

Inventor： DENCH EDWARD C

IPC: H01J25/42

CPC classification number: H01J25/42

公开(公告)号：US3046443A

公开(公告)日：1962-07-24

申请号：US76436458

申请日：1958-09-30

Applicant: RAYTHEON CO

Inventor： DENCH EDWARD C

IPC: H01J25/42

CPC classification number: H01J25/42

公开(公告)号：US2889488A

公开(公告)日：1959-06-02

申请号：US50633155

申请日：1955-05-05

Applicant: CSF

Inventor： DANIEL REVERDIN

IPC: H01J25/42

CPC classification number: H01J25/42

公开(公告)号：US2808538A

公开(公告)日：1957-10-01

申请号：US31277052

申请日：1952-10-02

Applicant: BELL TELEPHONE LABOR INC

Inventor： CUTLER CASSIUS C

IPC: H01J25/42

CPC classification number: H01J25/42

公开(公告)号：US2791717A

公开(公告)日：1957-05-07

申请号：US21498651

申请日：1951-03-10

Applicant: CSF

Inventor： BERNARD EPSZTEIN ,  HARRY HUBER

IPC: H01J25/42

CPC classification number: H01J25/42

公开(公告)号：US2776374A

公开(公告)日：1957-01-01

申请号：US24680151

申请日：1951-09-15

Applicant: ITT

Inventor： ISKENDERIAN HAIG P

IPC: H01J25/42

CPC classification number: H01J25/42

公开(公告)号：US2764710A

公开(公告)日：1956-09-25

申请号：US21621151

申请日：1951-03-17

Applicant: ZENITH RADIO CORP

Inventor： ROBERT ADLER

IPC: H01J25/42

CPC classification number: H01J25/42

公开(公告)号：US2687494A

公开(公告)日：1954-08-24

申请号：US9243749

申请日：1949-05-10

Applicant: ZENITH RADIO CORP

Inventor： ROBERT ADLER

IPC: H01J25/42

CPC classification number: H01J25/42

公开(公告)号：US10483075B2

公开(公告)日：2019-11-19

申请号：US15777977

申请日：2016-12-14

Applicant: NEC Network and Sensor Systems, Ltd.

Inventor： Norio Masuda ,  Takashi Nakano

IPC: H01J23/24 ,  H01J25/42 ,  H01P3/123 ,  H01J23/28 ,  H01P11/00

Abstract: Provided are a slow wave circuit and a traveling wave tube suitable for an increase in fineness with regard to processing beam holes, and suitable for higher frequencies. A slow wave circuit (10) includes a meandering waveguide (1) and a beam hole (2) that pierces the meandering waveguide (1), and the cross-section of the beam hole (2) in the direction orthogonal to the long direction is in the shape of a polygon having a larger number of sides than a quadrilateral.