Second order filter with low sensitivity to component values and

Details Second order filter with low sensitivity to component values and Second order filter with low sensitivity to component values and

1997-06-13

1999-09-28

Pascal, Robert

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

327552, 327558, H03H 102

Patent

active

059595108

ABSTRACT:
The present invention provides a second order filter with low sensitivity to component values and a method for designing the filter. The filter is impedance tapered by increasing the impedance of the filter circuit from left to right so as to minimize loading on the first ladder section and to maximize the pole quality factor of the first section. The filter is designed so that the value of the resistor of the second ladder section of the filter is equal to the resistor value of the first section multiplied by a scaling factor r, which is greater than 1. The capacitor of the second ladder section has a value equal to the value of the capacitor of the first ladder section divided by a tapering factor .rho., which is also greater than 1. In accordance with the preferred embodiment, the capacitor and resistor tapering factors are equal, i.e., r=.rho.>1.

REFERENCES:
patent: 4523109 (1985-06-01), Van Roessel
Moschytz, "A Universal LOW-Q Active-Filter Building Block Suitable for Hybrid-Integrated Circuit Implementation," IEEE Transactions on Circuit Theory, vol. CT-20, No. 1, pp. 37-47, Jan. 1973.
Moschytz et al., Active Filter Design Handbook, Wiley & Sons, pp. 123, 124, 130, & 203, 1981.

Affiliated with

Also associated with

Rating

Second order filter with low sensitivity to component values and does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Second order filter with low sensitivity to component values and, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Second order filter with low sensitivity to component values and will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-707895