Narrow band notch filter with extended passband

Details Narrow band notch filter with extended passband Narrow band notch filter with extended passband

1990-03-27

1992-10-20

LaRoche, Eugene R.

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

333170, 333176, H01P 701

Patent

active

051573628

ABSTRACT:
A notch filter having increased pass band characteristics is provided by insertion of an inductor between a normally-grounded capacitor and ground, the capacitor being connected to an inductive-capacitive filter network. By this construction, the equivalent capacitor of the high-frequency equivalent circuit is not connected directly to ground, but rather has the inductor interposed between it and ground. This significantly increases the pass band of the circuit.

REFERENCES:
patent: 2035258 (1936-03-01), Bode
patent: 4577168 (1986-03-01), Hartmann

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