EP 0524045 B1 19951108 - Antenna for decametric waves with reduced wind load.
Title (en)
Antenna for decametric waves with reduced wind load.
Title (de)
Kurzwellenantenne mit reduzierter Windbelastung.
Title (fr)
Antenne en ondes décamétriques à prise au vent réduite.
Publication
Application
Priority
FR 9109171 A 19910719
Abstract (en)
[origin: EP0524045A1] The invention relates to antennas for decimetric waves including at least one vertical array of dipoles (d2, d3, d5-d16) distributed in groups on various levels. The substantially rectangular form of the dipole array of known antennas is abandoned in favour of a form which is narrower in the top part of the array, by virtue of a reduced number of dipoles in the groups of the top part (d2-d3) by comparison with that in the groups of the bottom part (d5-d8; d9-d12; d13-d16); the reflector (Rb) associated with the array has correspondingly a surface of smaller width in its top part than in its bottom part. The performance thereof is only slightly affected and the structure is considerably lighter in weight. Application, in particular, to rotary antennas. <IMAGE>
IPC 1-7
IPC 8 full level
H01Q 1/00 (2006.01); H01Q 3/04 (2006.01); H01Q 9/18 (2006.01); H01Q 9/20 (2006.01); H01Q 19/10 (2006.01); H01Q 21/06 (2006.01)
CPC (source: EP)
H01Q 1/005 (2013.01); H01Q 21/062 (2013.01)
Designated contracting state (EPC)
CH DE GB LI SE
DOCDB simple family (publication)
EP 0524045 A1 19930120; EP 0524045 B1 19951108; CN 1068912 A 19930210; CZ 220492 A3 19930217; DE 69205906 D1 19951214; DE 69205906 T2 19960404; FR 2679383 A1 19930122; FR 2679383 B1 19931015; JP H05226933 A 19930903; YU 71092 A 19951003
DOCDB simple family (application)
EP 92401859 A 19920630; CN 92105632 A 19920718; CS 220492 A 19920714; DE 69205906 T 19920630; FR 9109171 A 19910719; JP 18966992 A 19920716; YU 71092 A 19920717