EP 0888648 B1 20031105 - HELICAL ANTENNA WITH BUILT-IN DUPLEXING MEANS, AND MANUFACTURING METHODS THEREFORE
Title (en)
HELICAL ANTENNA WITH BUILT-IN DUPLEXING MEANS, AND MANUFACTURING METHODS THEREFORE
Title (de)
WENDELANTENNE MIT INTEGRIERTEM DUPLEXER UND VERFAHREN ZU DEREN HERSTELLUNG
Title (fr)
ANTENNE HELICOIDALE A MOYENS DE DUPLEXAGE INTEGRES, ET PROCEDES DE FABRICATION CORRESPONDANTS
Publication
Application
Priority
- FR 9700456 W 19970313
- FR 9603699 A 19960319
Abstract (en)
[origin: CA2248884A1] A helical antenna with built-in duplexing means, including two decoupled coaxial helices that each consist of printed radiating wires (111 to 114) on a substrate and are combined with respective separate miniaturised broadband radiating wire power supply structures (12, 13, 14) printed on the corresponding substrate and provided with at least one hybrid coupler (12, 13, 14) made of semi-localised elements, in order to reduced the size thereof, is disclosed. Said helices are advantageously wound in opposite winding directions (17), and their excitation points are mutually staggered in a plane perpendicular to the axis of said helices. The corresponding manufacturing methods are also disclosed.
IPC 1-7
IPC 8 full level
H01P 5/18 (2006.01); H01Q 11/08 (2006.01)
CPC (source: EP US)
H01P 5/222 (2013.01 - EP US); H01P 5/227 (2013.01 - EP US); H01Q 11/08 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES GB IT
DOCDB simple family (publication)
WO 9735357 A1 19970925; AU 2165197 A 19971010; CA 2248884 A1 19970925; CN 1218434 C 20050907; CN 1218581 A 19990602; DE 69725972 D1 20031211; DE 69725972 T2 20040902; EP 0888648 A1 19990107; EP 0888648 B1 20031105; ES 2212088 T3 20040716; FR 2746548 A1 19970926; FR 2746548 B1 19980619; US 6608604 B1 20030819
DOCDB simple family (application)
FR 9700456 W 19970313; AU 2165197 A 19970313; CA 2248884 A 19970313; CN 97194512 A 19970313; DE 69725972 T 19970313; EP 97914395 A 19970313; ES 97914395 T 19970313; FR 9603699 A 19960319; US 14296799 A 19990315