A low voltage low power operational transconductance amplifier (OTA) based on a bulk driven cell and its application to implement a tunable Gm-C filter is presented. The linearity of the OTA is improved by attenuation and source degeneration techniques. The attenuation technique is implemented by bulk driven cell which is used for low supply voltage circuits. The OTA is designed to operate with...

A generic model of two dissimilar antenna-type resonators coupled both via near-field and far-field embedded in active gain and/or loss medium is considered. Conditions required for hitting the superscattering regime corresponding to threshold lasing emission operation are established. It shown that modulation losses level within realistic parameters an efficient approach implementation tunabil...

Abstract— The inductor-less designing of monolithic tunable active dual-band bandpass filter is presented in this study. Biasing voltages signify main role. They can control the center frequency and quality factor. Using four biasing voltages and cascading two similar filters leads to dual-band bandpass filter. By keeping the gain constant, the center frequency shift is 200 MHz. Regardless cons...