RF current-sensing coupled antenna device

Details RF current-sensing coupled antenna device RF current-sensing coupled antenna device

1995-07-28

1997-05-27

Hajec, Donald T.

Communications: radio wave antennas

Antennas

Including magnetic material

343742, 343856, H01Q 708

Patent

active

056336489

ABSTRACT:
An apparatus for, and method of, replacing conventional antennas which intercept radio frequency fields and develop electrical signals for input to an RF receiver. The invention eliminates the use of antennas by taking advantage of the fact that any electrical conductor or surface develops significant current when its length is approximately 0.1 wavelength long or longer of an intercepted RF field. The RF current-sensing coupled antenna device, employing the principles of an instrument transformer, transforms the current in a wire filament or metallic surface and conveys it to a receiver. The useful frequency range that has been demonstrated for the coupled antenna device is 100 kHz to 2 GHz.

REFERENCES:
patent: 3278937 (1966-10-01), Leydorf
patent: 3646562 (1972-02-01), Acker et al.
patent: 4622558 (1986-11-01), Corum

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