EP 0966057 A1 19991222 - Variable attenuator for a rectangular waveguide
Title (en)
Variable attenuator for a rectangular waveguide
Title (de)
Einstellbares Dämpfungsglied für Rechteckhohlleiter
Title (fr)
Atténuateur variable pour guide d'ondes rectangulaire
Publication
Application
Priority
EP 98460022 A 19980615
Abstract (en)
The device has a round plunger element (5) to be introduced perpendicularly in this wave guide (3) along a longitudinal slot (7) following the propagation axis of the waves in a first face of the guide, the plunger being movable in rotation about an eccentric axis (6) such that the portion of the plunger element introduced in the wave guide is a function of its angular position. For increasing the plunger element portion introduced in the wave guide, the plunger element and the longitudinal slot are set at a level of a curve (11) formed by this wave guide.
IPC 1-7
IPC 8 full level
H01P 1/22 (2006.01)
CPC (source: EP)
H01P 1/222 (2013.01)
Citation (search report)
- [XY] GB 640057 A 19500712 - WALDEMAR ROSENBERG, et al
- [Y] US 2491644 A 19491220 - CARLSON CARL P
- [Y] DE 1910362 A1 19700917 - LICENTIA GMBH
- [Y] DE 3608451 A1 19870917 - LICENTIA GMBH [DE]
- [X] US 2613270 A 19521007 - KING JR PAUL B
- [A] US 2619538 A 19521125 - GRANT EUGENE F
- [A] PATENT ABSTRACTS OF JAPAN vol. 7, no. 45 (E - 160)<1190> 23 February 1983 (1983-02-23)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 98460022 A 19980615; JP 16788599 A 19990615