Global Patent Index - EP 2747117 B1

EP 2747117 B1 20210623 - Device for generating microwaves with dual cathodes

Title (en)

Device for generating microwaves with dual cathodes

Title (de)

Vorrichtung zur Erzeugung von Hyperfrequenzwellen mit zwei Kathoden

Title (fr)

Dispositif de génération d'ondes hyperfréquences à double cathodes

Publication

EP 2747117 B1 20210623 (FR)

Application

EP 13197779 A 20131217

Priority

FR 1203487 A 20121219

Abstract (en)

[origin: EP2747117A2] The device (10) has an anode (20) and a cathode (16) separated by an interaction space (22). The cathode emits electrons in the space when subjected to an electric field (E) of a higher intensity than a threshold value. Another cathode (18) is provided between the former cathode and the anode, and emits other electrons in the space when subjected to the electric field of a higher intensity than another threshold value. The anode attracts the electrons. A fuel system for power supply of the cathodes establishes a potential difference between the cathodes.

IPC 8 full level

H01J 23/05 (2006.01); H01J 25/587 (2006.01)

CPC (source: EP)

H01J 23/05 (2013.01); H01J 25/587 (2013.01)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 2747117 A2 20140625; EP 2747117 A3 20160330; EP 2747117 B1 20210623; FR 2999797 A1 20140620; FR 2999797 B1 20160415

DOCDB simple family (application)

EP 13197779 A 20131217; FR 1203487 A 20121219