Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Patent
1998-04-10
2000-11-14
Bettendorf, Justin P.
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
333176, H01P 1203
Patent
active
061475769
ABSTRACT:
A method for designing a filtering device essentially comprising the steps of determining a desired response of the filtering device at a selected frequency; and selecting a circuit element that exhibits a parasitic effect at the selected frequency, wherein the parasitic effect results in the circuit element having the desired response at the selected frequency. A second method for designing a filtering device, similar to the first, but utilizes a field effect at the selected frequency, instead of a parasitic effect.
A frequency converter comprising a notch filter which filters a first frequency and does not filter a second frequency. The notch filter comprises a lumped parameter element and a transmission line, wherein the transmission line is coupled to the lumped parameter element.
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Ameramp LLC
Bettendorf Justin P.
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