A 2.2 to 2.9 GHz Complementary Class-C VCO With PMOS Tail-Current Source Feedback Achieving – 120 dBc/Hz Phase Noise at 1 MHz Offset

Shasidharan, Pravinah and Ramiah, Harikrishnan and Rajendran, Jagadheswaran (2019) A 2.2 to 2.9 GHz Complementary Class-C VCO With PMOS Tail-Current Source Feedback Achieving – 120 dBc/Hz Phase Noise at 1 MHz Offset. IEEE Access, 7. pp. 91325-91336. ISSN 2169-3536, DOI https://doi.org/10.1109/ACCESS.2019.2927031.

Full text not available from this repository.
Official URL: https://doi.org/10.1109/ACCESS.2019.2927031


The performance of low-powered transceivers is required to meet stringent specifications for an advanced wireless radio application. It is critical for a voltage-controlled oscillator (VCO) to meet multi-standard and multiple frequency operation with low-power consumption and amplitude enhanced complementary mode of operation. This paper proposes a novel technique for wide tuning range in a complementary class-C VCO employing a capacitive-source degeneration (CSD) to meet multi-standard operation for low-power transceivers. The technique that employs two sets of symmetrical split PMOS biased current source operating in the subthreshold region achieves the desired low phase noise (PN) performance at a tuning range of 2.2-2.9 GHz with a supply headroom of 1.2 V. The control of the dc bias point reduces the conduction angle, which improves the current efficiency, power consumption, and PN. Concurrently, an auxiliary $-g_{m}$ NMOS only class-B oscillator is incorporated to mitigate the start-up issue of the class-C VCO. At the center frequency of 2.45 GHz, the proposed VCO achieves a power consumption of 1.73 mW, phase noise of-120 dBc/Hz at the 1-MHz offset, and a figure-of-merit (FoM) of 185.41 dBc/Hz at 1 MHz. The total active chip area is only 0.3-mm2 excluding bond pads. The proposed VCO serves as a promising solution for low-power wireless communication systems. © 2013 IEEE.

Item Type: Article
Funders: Fundamental Research Grant (FRGS) from the University of Malaya under Grant FP049-2017A, CEDEC, Universiti Sains Malaysia, under Grant RUI 1001/PCEDEC/8014079 and Grant 304/PCEDEC/6315056, Talent Corporation Malaysia
Uncontrolled Keywords: capacitive source degeneration (CSD); Class-C VCO; CMOS; gate bias; phase noise (PN); start-up
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 20 Jan 2020 00:54
Last Modified: 20 Jan 2020 00:54
URI: http://eprints.um.edu.my/id/eprint/23468

Actions (login required)

View Item View Item