EP 0585250 B1 19960724 - OMNIDIRECTIONNAL PRINTED CYLINDRICAL ANTENNA AND MARINE RADAR TRANSPONDER USING SUCH ANTENNAS
Title (en)
OMNIDIRECTIONNAL PRINTED CYLINDRICAL ANTENNA AND MARINE RADAR TRANSPONDER USING SUCH ANTENNAS
Title (de)
Rundstrahlende, gedruckte Zylinderantenne und Seeradar-Antwortgerät mit derartigen Antennen
Title (fr)
ANTENNE CYLINDRIQUE IMPRIMEE OMNIDIRECTIONNELLE ET REPONDEUR RADAR MARITIME UTILISANT DE TELLES ANTENNES
Publication
Application
Priority
- FR 9200263 W 19920323
- FR 9104146 A 19910329
Abstract (en)
[origin: WO9217915A1] Omnidirectional printed cylindrical antenna consisting of a cylindrical substrate (1) in a dielectric material, the internal wall of which is coated with a metallic layer (2) forming a ground plane and the external wall of which receives the array elements (3), the latter being arranged in plurality of identical parallel sub-arrays (Ri) equidistant on a periphery of the substrate (1). The sub-arrays (Ri) are supplied in-phase, each sub-array (Ri) consisting of a rectilinear supply line (LR) which, on the cylindrical substrate (1) of the antenna is located on a generatrix of said cylinder, and a plurality of array elements (3) located alternately on either side of said supply line (LR) and supplied by said supply line (LR) so as to be able to transmit in-phase waves. The distance on the cylinder's periphery which separates the two adjacent sub-arrays (Ri and Ri+1) being at most equal to twice the maximum dimension on the periphery of the cylinder bearing the array elements (3). The said elements on one side of a sub-array are interlaced with the array elements (3) on the opposite side of an adjacent sub-array. The invention also concerns a marine radar transponder using such antennas.
IPC 1-7
IPC 8 full level
H01Q 21/20 (2006.01)
CPC (source: EP)
H01Q 21/205 (2013.01)
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
WO 9217915 A1 19921015; DE 69212471 D1 19960829; DE 69212471 T2 19961128; EP 0585250 A1 19940309; EP 0585250 B1 19960724; FR 2674689 A1 19921002; FR 2674689 B1 19930521
DOCDB simple family (application)
FR 9200263 W 19920323; DE 69212471 T 19920323; EP 92908983 A 19920323; FR 9104146 A 19910329