Loop antenna with reduced electrical field sensitivity

Details Loop antenna with reduced electrical field sensitivity Loop antenna with reduced electrical field sensitivity

1996-01-29

1998-10-20

Eisenzopf, Reinhard J.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

455129, 455121, 343742, 343741, H04B 118

Patent

active

058261788

ABSTRACT:
A small, high Q loop antenna configured on a printed circuit board as a planar structure receives a radio signal and shields its interior planar area against interfering electric field energy while concentrating therein radio signal magnetic flux. A magnetic pickup loop, coplanar to the antenna loop and magnetically coupled thereto, receives the radio signal power by virtue of its magnetic coupling to the loop antenna. The magnetic pickup loop couples to a receiving device and delivers the radio signal thereto. Illustrated embodiments include loop antennas tunable to a desired resonant frequency.

REFERENCES:
patent: 2535053 (1950-12-01), Ercolino
patent: 2657312 (1953-10-01), Saranga
patent: 3641576 (1972-02-01), Farbanish
patent: 4433336 (1984-02-01), Carr
patent: 4879570 (1989-11-01), Takizawa et al.
patent: 5225847 (1993-07-01), Roberts et al.
patent: 5337061 (1994-08-01), Pye et al.

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