Filter circuit for attenuating high frequency signals

Details Filter circuit for attenuating high frequency signals Filter circuit for attenuating high frequency signals

1991-10-31

1993-03-09

Pascal, Robert J.

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

333204, 333202, H03H 700, H01P 120

Patent

active

051929244

ABSTRACT:
A low pass filter circuit for a radiotelephone which filters harmonic, spectral components of a modulated signal generated by the radiotelephone. The filter circuit is comprised of inductors and capacitors wherein each inductor and each capacitor of the filter is comprised of a distributed-element portion and a discrete-element portion. The distributed element portions of each inductor and each capacitor of the filter attenuate higher-frequency, spectral components of a signal applied thereto. The discrete element components of each inductor and each capacitor of the filter attenuate lower-frequency, spectral components of the signal applied thereto.

REFERENCES:
patent: 4423396 (1983-12-01), Makimoto et al.
patent: 4513263 (1985-04-01), Minnis

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