EP 0603529 A1 19940629 - Antenna system with helical feeders.
Title (en)
Antenna system with helical feeders.
Title (de)
Antennensystem mit Wendelantennen.
Title (fr)
Système d'antenne à antennes en helice.
Publication
Application
Priority
- EP 93118255 A 19931111
- EP 92403535 A 19921222
Abstract (en)
2.1 It is an object of the present invention to present an antenna system for receiving several electromagnetic signals with different polarizations. 2.2 According to the invention helical feeders are switched in an axial backfire mode or/and in an axial endfire mode in dependence on the polarization to be received. 2.3 The invention can be used e.g. for the reception of TV satellite-signals. <IMAGE>
IPC 1-7
IPC 8 full level
H01Q 11/08 (2006.01); H01Q 21/24 (2006.01)
CPC (source: EP)
H01Q 11/08 (2013.01); H01Q 21/245 (2013.01)
Citation (search report)
- [YA] US 4494117 A 19850115 - COLEMAN H PARIS [US]
- [A] US 4862184 A 19890829 - PLOUSSIOS GEORGE [US]
- [YA] MÖNICH ET AL.: "HELICAL ANTENNA AND SPIRAL ANTENNA WITH FAST SWITCH SELECTION OF THE POLARISATION SENSE", ELECTRONICS LETTERS., vol. 26, no. 22, 25 October 1990 (1990-10-25), STEVENAGE GB, pages 1918 - 1919, XP000171268
- [A] NAKANO ET AL.: "Backfire Radiation from a Monofilar Helix with a Small Ground Plane", IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol. 36, no. 10, October 1988 (1988-10-01), NEW YORK US, pages 1359 - 1364, XP000004233, DOI: doi:10.1109/8.8621
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
DOCDB simple family (application)
EP 93118255 A 19931111