EP 0905813 A3 20000412 - Polarisation filter for the illumination of an antenna
Title (en)
Polarisation filter for the illumination of an antenna
Title (de)
Polarisationsweiche zur Ausleuchtung einer Antenne
Title (fr)
Filtre de polarisation pour l' illumination d' une antenne
Publication
Application
Priority
DE 19741999 A 19970924
Abstract (en)
[origin: EP0905813A2] A first junction in the form of a cavity (11) of rectangular cross-section is provided between a radially connected rectangular waveguide and an aperture opening. A second, stepped junction (8) is provided between a shaping piece (7) and a closed-front rectangular waveguide. The latter is connected to the second junction.
IPC 1-7
IPC 8 full level
H01P 1/161 (2006.01)
CPC (source: EP US)
H01P 1/161 (2013.01 - EP US)
Citation (search report)
- [A] GB 767518 A 19570206 - BRITISH THOMSON HOUSTON CO LTD
- [A] BOIFOT A M: "CLASSIFICATION OF ORTHO-MODE TRANSDUCERS", EUROPEAN TRANSACTIONS ON TELECOMMUNICATIONS AND RELATED TECHNOLOGIES,IT,AEI, MILANO, vol. 2, no. 5, 1 September 1991 (1991-09-01), pages 35 - 42, XP000266379, ISSN: 1120-3862
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)
DE 19741999 A1 19990325; AU 739731 B2 20011018; AU 8422098 A 19990415; DE 59814142 D1 20080131; EP 0905813 A2 19990331; EP 0905813 A3 20000412; EP 0905813 B1 20071219; KR 19990030061 A 19990426; US 6130649 A 20001010
DOCDB simple family (application)
DE 19741999 A 19970924; AU 8422098 A 19980914; DE 59814142 T 19980814; EP 98402074 A 19980814; KR 19980039406 A 19980923; US 14575398 A 19980902