EP 0076760 A1 19830413 - Adaptive spatial microwave filter for an antenna with any polarisation, and method for putting it into use.
Title (en)
Adaptive spatial microwave filter for an antenna with any polarisation, and method for putting it into use.
Title (de)
Adaptives Mikrowellenraumfilter für eine Antenne mit irgendeiner Polarisation und Verfahren zu seiner Anwendung.
Title (fr)
Filtre adaptatif spatial hyperfréquence pour antenne à polarisation quelconque et son procédé de mise en oeuvre.
Publication
Application
Priority
FR 8118674 A 19811005
Abstract (en)
[origin: US4518966A] The invention relates to an adaptive spatial microwave filter for multipolarized antennas and the process of its application. According to the invention, the filter principally consists of two conjugated networks of lines L1, l1; L2, l2; . . . of sections of wires loaded with diodes D mounted in series and essentially symmetrically superposed. The lines are passed through by polarizing currents I1, I2 . . . which according to selected distribution enables attenuation at reception of certain secondary lobes of the antenna pattern. The invention applies in particular to the localization and neutralization of jammers.
Abstract (fr)
Le filtre est constitué essentiellement de deux réseaux conjugués de lignes L1, l1; L2, l2; ... de tronçons de fils conducteurs chargés de diodes D montées en série se superposant sensiblement symétriquement. Les lignes sont parcourues par des courants de polarisation I1,I2 ... qui, selon la répartition choisie pemettent d'atténuer à la réception certains lobes secondaires du diagramme de l'antenne. L'invention s'applique notamment à la localisation et à la neutralisation des brouilleurs.
IPC 1-7
IPC 8 full level
H01Q 3/46 (2006.01); H01Q 15/00 (2006.01); H01Q 15/24 (2006.01)
CPC (source: EP US)
H01Q 3/46 (2013.01 - EP US); H01Q 15/002 (2013.01 - EP US); H01Q 15/24 (2013.01 - EP US)
Citation (search report)
- [A] US 3955201 A 19760504 - CRUMP LLOYD R
- [A] US 3896440 A 19750722 - WHEELER MYRON S
- [A] FR 2382109 A1 19780922 - THOMSON CSF [FR]
- [AD] FR 2448231 A1 19800829 - RADANT ET
- [A] US 3708796 A 19730102 - GILBERT B
- [A] EP 0042612 A1 19811230 - SIEMENS AG [DE]
- [A] FR 2281659 A1 19760305 - THOMSON CSF [FR]
- [A] US 3769623 A 19731030 - LUDWIG A, et al
- [A] US 4160254 A 19790703 - FROSCH ROBERT A ADMINISTRATOR, et al
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0076760 A1 19830413; EP 0076760 B1 19870429; DE 3276207 D1 19870604; FR 2514203 A1 19830408; FR 2514203 B1 19860425; US 4518966 A 19850521
DOCDB simple family (application)
EP 82401811 A 19821004; DE 3276207 T 19821004; FR 8118674 A 19811005; US 42637982 A 19820929