R.F. choke for CATV system

Details R.F. choke for CATV system R.F. choke for CATV system

1989-07-21

1991-07-16

LaRoche, Eugene R.

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

333185, 333245, 336180, 336170, 336172, H03H 709

Patent

active

050328085

ABSTRACT:
A radio frequency choke for a cable or CATV system is designed for blocking signals from 5 to 1000 MHz and passing 60 Hz AC power. The RF choke has a wire coil that is wound upon a coil form of a predetermined cross section, the coil being formed of a number of successive spaced windings on the form, with each winding being joined to the next by an air coil of at least one turn, formed off the loop. The various successive windings should have different numbers of turns. Forming the air coils tends to tighten the windings onto the form, so that a fixative coating or adhesive can be eliminated or omitted.

REFERENCES:
patent: 2401882 (1946-06-01), Polydoroff
patent: 2692372 (1954-10-01), Goldstine
patent: 3590329 (1971-06-01), Krepps, Jr.
patent: 3982814 (1976-09-01), Kaiserswerth et al.
patent: 4394631 (1983-07-01), Pavlic
patent: 4425565 (1984-01-01), Johns
patent: 4641115 (1987-02-01), Bailey

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