Communications: radio wave antennas – Antennas – With lumped reactance filter in active antenna
Patent
1982-05-03
1984-01-10
Lieberman, Eli
Communications: radio wave antennas
Antennas
With lumped reactance filter in active antenna
333175, H01Q 100
Patent
active
044255659
ABSTRACT:
A circuit having several resonant frequencies is disclosed. The capacitance between coils is used instead of discrete capacitor components. One frequency is the self-resonant frequency of a large single layer coil and another frequency is the resonance of the double layered end of the circuit. The use of such multiple frequency circuits as antenna traps and loading coils is shown.
REFERENCES:
patent: 3560895 (1971-02-01), Matsumoto
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