Wave transmission lines and networks – Coupling networks – Frequency domain filters utilizing only lumped parameters
Patent
1997-12-12
2000-04-25
Bettendorf, Justin P.
Wave transmission lines and networks
Coupling networks
Frequency domain filters utilizing only lumped parameters
333205, 333207, H03H 712
Patent
active
060549084
ABSTRACT:
A variable bandwidth filter that includes either a parallel or series combination of a fixed impedance, such as a capacitor, and a variable impedance, such as a variable capacitor. The series and parallel combinations enable the ideal capacitance values for the filter coupling to be approximated thereby enabling a single control voltage to control the filter bandwidth without effecting the filter's upper frequency.
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Bettendorf Justin P.
TRW Inc.
Yatsko Michael S.
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