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Publication of FR659662ApublicationCriticalpatent/FR659662A/fr
H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
FR659662D1927-12-191927-12-19Collecteur d'ondes à quatre enroulements pour télégraphie, téléphonie et télévision sans fil
ExpiredFR659662A
(fr)
Perfectionnements aux appareils récepteurs de télégraphie et téléphonie sans fil pour permettre l'amplification en haute fréquence des ondes inférieures à 500 mètres