Wide band directional coupler

Details Wide band directional coupler Wide band directional coupler

1980-06-09

1982-01-19

Gensler, Paul L.

Wave transmission lines and networks

Plural channel systems

Having branched circuits

333119, H03H 752

Patent

active

043119743

ABSTRACT:
A directional coupler for sampling energy traversing a CATV system of the type wherein wide band television signals are extracted from a coaxial transmission line situated at points located at varying distances from the line amplifier. The coupler includes a voltage sensing transformer in shunt with the center and outer conductors of the cable and a current sensing transformer in series with the center conductor. The transformers are wound to provide the coupler with a relatively low tap value. Windings in the shunt transformer are used to internally boost the impedance at the input to the series transformer to maximize return losses and directivity.

REFERENCES:
patent: 3559110 (1971-01-01), Wiley et al.
patent: 3747028 (1973-07-01), Pennypacker

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