High powered ferrite loaded helicopter antenna

Communications: radio wave antennas – Antennas – With aircraft

Patent

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Details

343787, 343830, H01Q 128

Patent

active

039368343

ABSTRACT:
An inductive, internally fed, ferrite-loaded antenna mounted at the geomecal center of a helicopter. The antenna is capable of transmitting in the 2-30 MHZ range with particularly good characteristics between 2.0-3.5 MHZ and employs the air frame as a radiating element. The radiation pattern is circular and extends for a radius greater than 200 mi. at an altitude of 300 feet.

REFERENCES:
patent: 2404093 (1946-07-01), Roberts
patent: 2748386 (1956-05-01), Polydoroff
patent: 3702479 (1972-11-01), Uhrig

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