EP 0065973 B1 19890531 - DIRECTIONAL ANTENNA WITH A PLURALITY OF ELEMENTS
Title (en)
DIRECTIONAL ANTENNA WITH A PLURALITY OF ELEMENTS
Publication
Application
Priority
DE 3045684 A 19801204
Abstract (en)
[origin: WO8202119A1] Directional antenna system for short and ultra short waves of which the elements (1, 2, 3) are tuned without a tuning device such as a series or parallel resonance circuit. The system is tuned by the fact that the imaginery inductive component of a radiation element (1) too long at a certain frequency is coupled by spacial approach with the imaginery capacitive component of a too short radiation element (2), those two components compensating mutually. Hence, the system is adapted to the impedance of the conductor by an additional conductor (10) which further makes accessible other frequency ranges such as for example 7 MHz.
IPC 1-7
IPC 8 full level
H01Q 19/30 (2006.01); H01Q 5/00 (2006.01); H01Q 5/40 (2015.01); H01Q 5/49 (2015.01); H01Q 9/06 (2006.01); H01Q 9/16 (2006.01); H01Q 21/30 (2006.01)
CPC (source: EP)
H01Q 5/40 (2015.01); H01Q 5/49 (2015.01); H01Q 21/30 (2013.01)
Designated contracting state (EPC)
CH DE FR GB LI NL SE
DOCDB simple family (publication)
WO 8202119 A1 19820624; DE 3045684 A1 19820708; DE 3177064 D1 19890706; EP 0065973 A1 19821208; EP 0065973 B1 19890531; JP S57502033 A 19821111
DOCDB simple family (application)
DE 8100209 W 19811202; DE 3045684 A 19801204; DE 3177064 T 19811202; EP 82900016 A 19811202; JP 50004982 A 19811202