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This paper presents a high-bandwidth 2 GHz CMOS variable gain amplifier (VGA) for using in the band of square kilometer array (SKA) range that achieves an 18 dB dynamic range (DR) while powered from a single 1.8 V supply. This VGA capability is obtained by employing a passive digital T-bridge attenuator followed by a fixed amplifier, the use of attenuator in the front end of the VGA results in a high...
This paper presents a methodology to design voltage controlled oscillators. The usefulness of the design proposal is shown by designing a LC oscillator in a 130nm CMOS technology, intended for Bluetooth/Zigbee applications. From simulations results, when temperature varies from 0 to 100°C, power consumption ranging from 3.1mW to 3.81mW is achieved. At 3.4mW of power consumption, a phase noise of −119...
This paper presents a new four-quadrant analog multiplier circuit based on a new symmetrical configuration designed in CMOS technology. The proposed circuit is suitable for low voltage and low power applications. Compared to the corresponding already published works, the dynamic input and output ranges of the circuit are improved owing to the fact that the circuit works in the saturation region not...
This paper presents a novel design of an active inductor based on the topology of Manetakis regulated cascode active inductor. The aim of this work is to enhance the manual design of active inductors by using AIDA-C design automation methodology. The circuit is manually designed using a 130 nm CMOS technology in Cadence® to obtain an Inductor operating at 14.2GHz. The sizing of the proposed active...
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