Bifilar antenna trap

Details Bifilar antenna trap Bifilar antenna trap

1981-01-02

1982-06-15

Lieberman, Eli

Communications: radio wave antennas

Antennas

With lumped reactance filter in active antenna

H01Q 920, H01Q 114

Patent

active

043353860

ABSTRACT:
Antenna traps without a separate capacitor component are disclosed. The traps are tuned by the capacitance between bifilar coils employed as the trap inductor. Simplicity, low cost, and ease of fabrication are the advantages of this trap. A method of winding a trap antenna from a continuous wire that becomes both antenna segments and resonant traps is also disclosed.

REFERENCES:
patent: 2129514 (1938-09-01), Wertheimer
patent: 2422458 (1947-06-01), Amy et al.
patent: 3419869 (1968-12-01), Altmayer
patent: 3560895 (1971-02-01), Matsumoto
patent: 4255728 (1981-03-01), Doty

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