Global Patent Index - EP 0708491 B1

EP 0708491 B1 2000-01-26 - Optical control system for an antenna with electronic scanning

Title (en)

Optical control system for an antenna with electronic scanning

Title (de)

Optisches Steuerungssystem für eine Antenne mit elektronischer Ablenkung

Title (fr)

Système de commande optique d'antenne à balayage électronique

Publication

EP 0708491 B1 (FR)

Application

EP 95402134 A

Priority

FR 9411498 A

Abstract (en)

[origin: EP0708491A1] The system includes two light sources (T1,T2) which transmit orthogonal polarisation light beams (F1,F2) through a delay mechanism (DCR). A delay (DCRn) is created for each of the phase shifter elements. A mirror separator (MD1-MDn) separates out the two light polarisations. One set is detected (PDR1,1-n) and the phase shift operates the transmitter (ED1-EDn). The other polarisation delay set passes to a receiver detection circuit (FFC) which operates the receiver phase shifters.

IPC 1-7 (main, further and additional classification)

H01Q 3/26

IPC 8 full level (invention and additional information)

H01Q 3/26 (2006.01)

CPC (invention and additional information)

H01Q 3/2676 (2013.01)

Designated contracting state (EPC)

DE GB IT

DOCDB simple family

EP 0708491 A1 19960424; EP 0708491 B1 20000126; DE 69514752 D1 20000302; DE 69514752 T2 20000831; FR 2725076 A1 19960329; FR 2725076 B1 19961213