Reduced current antenna circuit

Details Reduced current antenna circuit Reduced current antenna circuit

1995-05-10

1996-02-20

Hajec, Donald T.

Communications: radio wave antennas

Antennas

With coupling network or impedance in the leadin

343742, 340572, H01Q 150

Patent

active

054933129

ABSTRACT:
An alternative resonant circuit configuration reduces the amount of RF current that is switched by the power-stage transistors of a T/R unit and thereby also significantly reduces the reliability risk. A parallel resonant antenna configuration of coils and capacitors reduces the RF current through the output stage push-pull transistor configuration to a small fraction of the RF current experienced by typical series resonant circuits. This circuit offers advantages of low cost, reliable impedance matching while reducing the volume necessary to perform the function.

REFERENCES:
patent: 2111743 (1938-03-01), Blumlein et al.
patent: 3440633 (1969-04-01), Vinding
patent: 4551712 (1985-11-01), Fockens
patent: 5012224 (1991-04-01), Drucker
patent: 5055835 (1991-10-01), Sutton
patent: 5099226 (1992-03-01), Andrews
patent: 5241298 (1993-08-01), Lian et al.
patent: 5257033 (1993-10-01), Roche
patent: 5317330 (1994-05-01), Everett et al.

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