A low-voltage square-root domain n-th order multifunction FLF filter topology
Analog Integrated Circuits and Signal Processing
Design simplifications for bi notch filters
Analog Integrated Circuits and Signal Processing
Limit cycle behavior in a class-AB second-order square root domain filter
Analog Integrated Circuits and Signal Processing
On the design of multi notch filters
International Journal of Circuit Theory and Applications
Design of Sinh-Domain filters using complementary operators
International Journal of Circuit Theory and Applications
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A novel technique for designing square-root domain (SRD) filters is introduced in this paper. The concept of the proposed method is based on the substitution of the passive elements of the corresponding prototype filter by their SRD equivalents. The signal processing performed by the proposed SRD equivalents achieves that the voltage at each terminal of the SRD equivalent is the compressed version of the voltage at the corresponding terminal of the passive element, and that the current that flows through the SRD equivalent is the same as that flows through the passive element. The main attractive characteristic of the proposed method is that a quick procedure for designing SRD filters is offered. The validity of the proposed technique was verified by studying the behaviour of a 5th-order SRD low-pass filter. In order to demonstrate the benefits offered by the proposed technique, a SRD leapfrog filter was also designed and its performance is compared with that of the active filter that topologically simulates the same prototype filter. Copyright © 2007 John Wiley & Sons, Ltd.