Filtering cell and corresponding filter

Details Filtering cell and corresponding filter Filtering cell and corresponding filter

1990-10-18

1992-06-09

Laroche, Eugene R.

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

333172, 333176, 333204, H03H 707

Patent

active

051210789

ABSTRACT:
A filtering cell including a resonant circuit having an inductor and capacitor connected in parallel, the inductor being separated into two identical inductors which are connected in series with a midpoint therebetween. A second capacitor is connected at the midpoint and has a quality factor substantially equal to a quality factor of the first inductor, resulting in attenuation at the resonant frequency. Each of the inductors and capacitors are formed by micro-ribbon technology.

REFERENCES:
patent: 1611932 (1926-12-01), Mathes
patent: 1814238 (1931-07-01), Bode
patent: 1897639 (1933-02-01), Kreer, Jr.
patent: 2762018 (1956-09-01), Purrington
patent: 2832047 (1958-04-01), Miller
patent: 3103554 (1963-09-01), Avins et al.
patent: 4264881 (1981-04-01), De Ronde
Gourevitch, "Les filtres elliptiques plats", Toute L-electronique, Aug./Sep. 1976, pp. 59-63.

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