FR1147408A - Dispositif à décharge d'électrons - Google Patents

Dispositif à décharge d'électrons

Info

Publication number: FR1147408A
Authority: FR; France
Prior art keywords: discharge device; electron discharge; electron; discharge
Prior art date: 1953-10-12
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired

Application number

Other languages

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Varian Medical Systems Inc

Original Assignee

Varian Associates Inc

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1953-10-12

Filing date

1954-10-05

Publication date

1957-11-25

1953-10-12 Priority claimed from US385357A external-priority patent/US2836758A/en

1954-10-05 Application filed by Varian Associates Inc filed Critical Varian Associates Inc

1957-11-25 Application granted granted Critical

1957-11-25 Publication of FR1147408A publication Critical patent/FR1147408A/fr

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/16—Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
- H01J23/24—Slow-wave structures, e.g. delay systems
- H01J23/26—Helical slow-wave structures; Adjustment therefor
- H01J23/27—Helix-derived slow-wave structures
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/16—Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
- H01J23/24—Slow-wave structures, e.g. delay systems
- H01J23/26—Helical slow-wave structures; Adjustment therefor

FR1147408D 1953-10-12 1954-10-05 Dispositif à décharge d'électrons Expired FR1147408A (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US385357A US2836758A (en)	1953-10-12	1953-10-12	Electron discharge device
US696158A US2937311A (en)	1953-10-12	1957-11-13	Electron discharge device

Publications (1)

Publication Number	Publication Date
FR1147408A true FR1147408A (fr)	1957-11-25

Family

ID=27010981

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR1147408D Expired FR1147408A (fr)	1953-10-12	1954-10-05	Dispositif à décharge d'électrons

Country Status (3)

Country	Link
US (1)	US2937311A (fr)
FR (1)	FR1147408A (fr)
GB (1)	GB787249A (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB986587A (en) *	1962-08-29	1965-03-17	M O Valve Co Ltd	Improvements in or relating to travelling wave tubes
US3322996A (en) *	1962-12-17	1967-05-30	Varian Associates	Electron discharge devices and molybdenum slow wave structures, the molybdenum slow wave structures having grain alignment transverse to the electron path
FR2445607A1 (fr) *	1978-12-27	1980-07-25	Thomson Csf	Procede de fabrication d'une ligne a retard hyperfrequence, ligne a retard hyperfrequence obtenue par ce procede et tube a onde progressive comportant une telle ligne
US4465987A (en) *	1982-09-07	1984-08-14	Hughes Aircraft Company	Ring-bar slow wave structure and fabrication method
US6320550B1 (en)	1998-04-06	2001-11-20	Vortekx, Inc.	Contrawound helical antenna
CN111640636B (zh) *	2020-06-09	2021-03-30	电子科技大学	一种工作在正二次空间谐波的行波管慢波电路
CN114360988B (zh) *	2022-01-07	2023-04-18	电子科技大学	一种v形矩形槽交错双栅波导慢波结构行波管

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR993156A (fr) *	1949-06-08	1951-10-29	Thomson Houston Comp Francaise	Structure assurant une réduction de la vitesse de propagation d'une onde électromagnétique
US2725499A (en) *	1949-06-21	1955-11-29	Bell Telephone Labor Inc	High frequency amplifying device
US2813221A (en) *	1950-10-02	1957-11-12	Rca Corp	Electron beam traveling-wave tube
US2768322A (en) *	1951-06-08	1956-10-23	Bell Telephone Labor Inc	Interdigital filter circuit
US2824257A (en) *	1953-03-03	1958-02-18	Gen Electric	Traveling wave tube
US2798183A (en) *	1954-11-29	1957-07-02	Hughes Aircraft Co	Traveling-wave tube
US2822502A (en) *	1955-04-05	1958-02-04	Hughes Aircraft Co	Slow-wave structure

1954
- 1954-09-21 GB GB27312/54A patent/GB787249A/en not_active Expired
- 1954-10-05 FR FR1147408D patent/FR1147408A/fr not_active Expired
1957
- 1957-11-13 US US696158A patent/US2937311A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
US2937311A (en)	1960-05-17
GB787249A (en)	1957-12-04

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