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This paper studies application of a semi-active dual loop feedback network in an ultrawideband low-noise amplifier which has been realized in a 130-nm bulk digital CMOS process. The proposed simple feedback connection is shown to improve amplifier stability and to increase isolation, with no discernible extra cost. Measurement results support the stated benefits with stable amplifier operation in...
A 60 GHz gain block is designed in a 65 nm digital CMOS 1P9M process using only digital CMOS models and a reduced metallization stack-up height to support redistribution layer routing for flip-chip designs. The design methodology utilizes current density, distributed, and lumped modeling to predict the measured center frequency of the gain block less than 1% from the simulated values. At 1 V and 5...
A CMOS mixer was design with a new circuit scheme to realize low voltage and high linearity simultaneously. A double balanced Gilbert cell was adopted as the basic topology and TSMC 0.18 mum 1P6M CMOS process was employed for the on-chip RF circuit fabrication. The proposed new circuit scheme consists of LC-tanks as a capacitively coupled resonator for low voltage and multi-stage parallel RC networks...
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