G - Physics
08
B
G08B 13/14 (2006.01) G08B 13/24 (2006.01) H01Q 7/00 (2006.01) H01Q 7/08 (2006.01)
Patent
CA 2414394
A ferrite core antenna (23) having two spaced signal pick-up coils (27, 28) coupled through a transformer (33) so that the signals from the two coils (27, 28) are additively combined in the primary of the transformer (33). A variable capacitor (31) connected to the two coils (27, 28) tunes the antenna (23) to selected frequencies. This results in amplification of the signal.
L'invention concerne une antenne à noyau ferrite (23) comprenant deux enroulements espacés de prise de signaux (27, 28) couplés par le biais d'un transformateur (33), de façon que les signaux provenant de ces deux enroulements (27, 28) soient combinés de manière additionnelle dans l'enroulement primaire du transformateur (33). Un condensateur variable (31), connecté aux deux enroulements (27, 28), règle l'antenne (23) sur des fréquences choisies. Cet agencement permet d'obtenir une amplification du signal.
C.crane Company
Smart & Biggar
LandOfFree
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