Design of multi-layers DGS resonator for phase noise improvement of K-Band VCOs in 0.18 µm CMOS technology

Islam Mansour, Mohamed Aboualalaa, Nusrat Jahan, Adel Barakat, Ramesh K. Pokharel, Ahmed Allam, Adel B. Abdel-Rahman, Mohammed Abo-Zahhad

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

A novel technique for a low phase noise and compact K-band Voltage-Controlled Oscillator (VCO) using multi-layers DGS resonator is proposed. The proposed DGS resonator realizes an additional series resonance at the higher side of parallel resonance frequency, and this results in improving both the active and loaded quality factor of the resonator. The proposed resonator has active quality factor of 130 and a compact size of 0.009 mm 2 (0.000459 ? 2 ). Using the proposed DGS resonator in the VCO causes 9 dB improvement in the phase noise compared the VCO implemented using the conventional LC resonator. Two VCOs are designed using the method to illustrate the effect of the series resonance. The first VCO is designed three layers DGS resonator and the other VCO using two layers DGS resonator. The designs are implemented in 0.18 µm CMOS technology and consume 2.9 mW power, and from the post layout results, the first proposed VCO oscillates from 19.6 to 21.3 GHz (8.3 %) and has a phase noise of -113.2 dBc/Hz at 1 MHz offset frequency, and this results in the figure of merit (FoM) and FoM taking account of the tuning range to be -194.4 and -192.7 dB, respectively. The second VCO has a tuning range of 6.1 % and phase noise of -114 dBc/Hz @ 1 MHz offset at 19.6 GHz oscillation.

本文言語英語
ホスト出版物のタイトル2018 IEEE 61st International Midwest Symposium on Circuits and Systems, MWSCAS 2018
出版社Institute of Electrical and Electronics Engineers Inc.
ページ178-181
ページ数4
ISBN(電子版)9781538673928
DOI
出版ステータス出版済み - 1 22 2019
イベント61st IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2018 - Windsor, カナダ
継続期間: 8 5 20188 8 2018

出版物シリーズ

名前Midwest Symposium on Circuits and Systems
2018-August
ISSN(印刷版)1548-3746

会議

会議61st IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2018
国/地域カナダ
CityWindsor
Period8/5/188/8/18

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 電子工学および電気工学

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