EP 1199768 A1 20020424 - Waveguide filter
Title (en)
Waveguide filter
Title (de)
Hohlleiterfilter
Title (fr)
Filtre en guide d'onde
Publication
Application
Priority
FR 0013582 A 20001018
Abstract (en)
[origin: US2002044032A1] The invention proposes to reduce the costs of waveguide filters, especially for filters operating at millimeter wavelengths which require high accuracy. The filter of the invention is composed of a plurality of discs 2, 3 held in the cylinder of a support 1. The various parts constituting the filter are very much simplified which makes it possible to reduce the production costs while having good accuracy.
Abstract (fr)
L'invention propose de réduire les coûts des filtres en guide d'onde, notamment pour les filtres travaillant dans les ondes millimétrique qui nécessitent une grande précision. Le filtre de l'invention est composé d'une pluralité de rondelles 2, 3 maintenues dans le cylindre d'un support 1. Les différentes pièces constituantes du filtre se trouvent très simplifiées ce qui permet de réduire les coûts de production tout en ayant une bonne précision. <IMAGE>
IPC 1-7
IPC 8 full level
H01P 1/208 (2006.01); H01P 7/06 (2006.01); H01P 11/00 (2006.01)
CPC (source: EP US)
H01P 1/208 (2013.01 - EP US); H01P 11/007 (2013.01 - EP US)
Citation (search report)
- [A] GB 731498 A 19550608 - STANDARD TELEPHONES CABLES LTD
- [A] DE 3512936 A1 19861016 - HIRSCHMANN RADIOTECHNIK [DE]
- [A] US 4701728 A 19871020 - IGARASHI SADAO [JP]
- [A] US 4724408 A 19880209 - IGARASHI SADAO [JP]
Citation (examination)
- DE 3617203 A1 19871126 - KATHREIN WERKE KG [DE]
- JP S63187801 A 19880803 - HITACHI LTD
- PATENT ABSTRACTS OF JAPAN 3 August 1988 (1988-08-03)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1199768 A1 20020424; CN 1225816 C 20051102; CN 1349275 A 20020515; FR 2815475 A1 20020419; FR 2815475 B1 20030117; JP 2002164709 A 20020607; US 2002044032 A1 20020418; US 6657519 B2 20031202
DOCDB simple family (application)
EP 01123567 A 20011001; CN 01136553 A 20011017; FR 0013582 A 20001018; JP 2001318530 A 20011016; US 97172501 A 20011004