Global Patent Index - EP 0156004 B1

EP 0156004 B1 19890308 - TRAVELLING-WAVE TUBE AND MANUFACTURING METHOD OF THE SAME

Title (en)

TRAVELLING-WAVE TUBE AND MANUFACTURING METHOD OF THE SAME

Publication

EP 0156004 B1 19890308 (DE)

Application

EP 84114709 A 19841204

Priority

DE 3407206 A 19840228

Abstract (en)

[origin: US4647816A] A travelling-wave tube comprising a delay line in the form of a helix line which is disposed inside of a solid metal vacuum envelope. A high-performance travelling-wave tube whose delay line is distinguished by very good dissipation of the stray heat. A large bandwidth results by providing the delay line with a core of insulator material which has a metal layer at its inside and outside generated surfaces.

IPC 1-7

H01J 23/26

IPC 8 full level

H01J 23/26 (2006.01)

CPC (source: EP US)

H01J 23/26 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

EP 0156004 A1 19851002; EP 0156004 B1 19890308; DE 3407206 A1 19850829; DE 3477090 D1 19890413; US 4647816 A 19870303

DOCDB simple family (application)

EP 84114709 A 19841204; DE 3407206 A 19840228; DE 3477090 T 19841204; US 67193684 A 19841116