EP 2202839 B1 20190522 - Compact feed system for the generation of circular polarisation in an antenna and method of producing such system
Title (en)
Compact feed system for the generation of circular polarisation in an antenna and method of producing such system
Title (de)
Kompakte Speiseeinrichtung zur Erzeugung einer Zirkularpolarisation in einer Antenne und Herstellungsvervahren einer solchen Speiseeinrichtung
Title (fr)
Ensemble d'excitation compact pour la génération d'une polarisation circulaire dans une antenne et procédé d'élaboration d'un tel ensemble d'excitation
Publication
Application
Priority
FR 0807063 A 20081216
Abstract (en)
[origin: EP2202839A1] The assembly has an asymmetric diplexing orthomode transducer (21) comprising two branches coupled to a main waveguide by two parallel coupling slots. The branches are respectively linked to two waveguides (35, 36) of an unbalanced branched coupler (40). The slots are formed in two orthogonal walls of the waveguide, and linked to the coupler via stub filters (27, 28) and recombination circuits (29, 30). The coupler has two different splitting coefficients that are optimized to compensate for orthogonal spurious components of electric field produced by the asymmetry of the transducer. An independent claim is also included for a method for developing a compact excitation assembly for generating a circular polarization in an antenna.
IPC 8 full level
H01P 1/161 (2006.01); H01P 1/213 (2006.01)
CPC (source: EP US)
H01P 1/161 (2013.01 - EP US); H01P 1/2131 (2013.01 - EP US)
Citation (examination)
US 7408427 B1 20080805 - LEE-YOW CLENCY [US], et al
Designated contracting state (EPC)
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 SE SI SK SM TR
DOCDB simple family (publication)
EP 2202839 A1 20100630; EP 2202839 B1 20190522; CA 2678530 A1 20100616; CA 2678530 C 20170321; CN 101752632 A 20100623; CN 101752632 B 20140521; FR 2939971 A1 20100618; FR 2939971 B1 20110211; JP 2010148109 A 20100701; JP 5678314 B2 20150304; RU 2009133480 A 20110320; RU 2511488 C2 20140410; US 2010149058 A1 20100617; US 8493161 B2 20130723
DOCDB simple family (application)
EP 09169222 A 20090902; CA 2678530 A 20090917; CN 200910225207 A 20091116; FR 0807063 A 20081216; JP 2009285280 A 20091216; RU 2009133480 A 20090907; US 57751509 A 20091012