220860 ⎘
Networks using active elements; Multiple-port networks; Frequency selective two-port networks using amplifiers with feedback using a plurality of operational amplifiers Modifications to reduce detrimental influences of amplifier imperfections, e.g. limited gain-bandwith product, limited input impedance
Self calibrated, broadband, tunable, active oscillator with unity gain cells for multi-standard and/or multiband channel selection
#2Self-calibrated, broadband, tunable, active filter with unity gain cells for multi-standard and/or multiband channel selection
#3Active-RC filter with compensation to reduce Q enhancement
#4Active filter