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Analog bandpass filter

  • US 20040217827A1
  • Filed: 06/01/2004
  • Published: 11/04/2004
  • Est. Priority Date: 12/03/2001
  • Status: Abandoned Application
First Claim
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1. ANALOG BAND PASS FILTER comprising numerous LC ladder circuits whose response is defined by a pass band (fri and fps) and a stop band (whose limits are fri and frs);

  • wherein the LC ladder circuits include in parallel with the filter load, a series of tank circuits whose resonance frequencies coincide with lower (fpi) and upper (fps) cut frequencies of the bandpass filter;

    where furthermore a control resistance Rc is foreseen, all of which is to compensate for effect of a real limitation of LC components by adjusting a real response of the bandpass filter to an ideal response desired.

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