EP 1341253 A1 20030903 - Waveguide monitoring arrangement
Title (en)
Waveguide monitoring arrangement
Title (de)
Überwachungseinrichtung für Hohlleiter
Title (fr)
Dispositif de surveillance pour guide d'ondes
Publication
Application
Priority
GB 0202660 A 20020206
Abstract (en)
An electromagnetic waveguide unit such as a diplexer includes a signal monitoring arrangement having a sampling passage (6) which links two sections (3, 4) of the waveguide for testing purposes allowing a proportion of the signal to bypass an electromagnetic cavity filter 5. The passage contains a cavity 7, and the waveguide sections have tuning projections 8 and 9 disposed opposite the passage 6. The size of the holes in the waveguide wall can thus be reduced to minimise return losses whilst allowing sampling across a broader range of operating frequencies. In addition, the spacing between the waveguide sections can be increased giving greater design flexibility. <IMAGE>
IPC 1-7
IPC 8 full level
H01P 1/213 (2006.01); H01P 5/18 (2006.01)
CPC (source: EP)
H01P 1/2138 (2013.01); H01P 5/181 (2013.01)
Citation (search report)
- [X] US 2423390 A 19470701 - KORMAN NATHANIEL I
- [X] US 2532539 A 19501205 - COUNTER VIRGIL A, et al
- [A] DE 3208029 A1 19830915 - SIEMENS AG [DE]
- [A] GB 2359197 A 20010815 - BSC FILTERS LTD [GB]
Designated contracting state (EPC)
GB IT SE
DOCDB simple family (publication)
EP 1341253 A1 20030903; EP 1341253 B1 20110119; GB 0202660 D0 20020320
DOCDB simple family (application)
EP 03250708 A 20030204; GB 0202660 A 20020206