Study of phase noise improvement of K-band VCO using additional series resonance realized by DGS resonator on CMOS technology

Nusrat Jahan, Adel Barakat, Ramesh K. Pokharel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

In this paper, we propose a K-band voltage controlled oscillator (VCO) using defected ground structure (DGS) that realizes the series resonant and parallel resonant characteristic. An H-shaped DGS etched at the lowest metal layer (M1) below microstrip line (MSL) on the top metal layer (M6) of 0.18 μm 1P6M CMOS process. The MSL is etched in the middle to realize series capacitance, which produces series resonance characteristics and sharpens the response of magnitude of Z11 (mag|Z11|). The proposed DGS resonator achieved smaller size and high quality (Q-) factor. The post-layout simulation result shows that VCO has a tuning range of 3.4%, and a low phase noise with -110.9 dBc/Hz @1 MHz offset at 21.02 GHz oscillation. The VCO consumes 7.5 mW power resulting in a FoM of 188.7 dB.

Original languageEnglish
Title of host publication2017 Asia Pacific Microwave Conference, APMC 2017 - Proceedings
EditorsIdnin Pasya
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1014-1017
Number of pages4
ISBN (Electronic)9781538606407
DOIs
Publication statusPublished - Jun 28 2017
Event2017 IEEE Asia Pacific Microwave Conference, APMC 2017 - Kuala Lumpur, Malaysia
Duration: Nov 13 2017Nov 16 2017

Publication series

NameAsia-Pacific Microwave Conference Proceedings, APMC

Other

Other2017 IEEE Asia Pacific Microwave Conference, APMC 2017
CountryMalaysia
CityKuala Lumpur
Period11/13/1711/16/17

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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    Jahan, N., Barakat, A., & Pokharel, R. K. (2017). Study of phase noise improvement of K-band VCO using additional series resonance realized by DGS resonator on CMOS technology. In I. Pasya (Ed.), 2017 Asia Pacific Microwave Conference, APMC 2017 - Proceedings (pp. 1014-1017). (Asia-Pacific Microwave Conference Proceedings, APMC). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APMC.2017.8251624