70% Improvement in Q-factor of spiral inductor and its application in switched K-band VCO using 0.18 um CMOS technology

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

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

抜粋

A novel technique for increasing the quality factor of the on-chip inductor is proposed in this paper. A high-quality factor shunt inductor is designed using the lower layers 5 and 3 in 0.18 um CMOS technology so the top layer is valid for other circuit components. The quality factor is improved by 70 % in the Ku, K and Ka-band compared to the single layer inductor. Furthermore, the proposed inductor has a compact area of about 0.0089 mm 2 . This shunt inductor is used with a switched MOS varactor capacitors to construct a switched notch filter which has a sharp skirt characteristic and can be used in the VCO circuits. Using this switched shunt inductor resonator, the phase noise of the VCO is enhanced by 8 dB compared to single layer inductor resonator, moreover, the frequency tuning range is doubled. The VCO achieves a wide tuning range of 2.5 GHz, the first band from 18.8 to 19.97 GHz while the second band from 19.96 to 21.3 GHz. The phase noise at 1MHz is -112.4 and -112.5 dBc/Hz at the low and high band and this results FoM of-192.2 and -192.5 at 19.9 GHz and 21.3 GHz, respectively. The figure of merit considering the frequency tuning range (FoM T ) is -194.4 dBc/Hz and the active VCO core area is 0.039 mm 2

元の言語英語
ホスト出版物のタイトル2018 Asia-Pacific Microwave Conference, APMC 2018 - Proceedings
出版者Institute of Electrical and Electronics Engineers Inc.
ページ1133-1135
ページ数3
ISBN(電子版)9784902339451
DOI
出版物ステータス出版済み - 1 16 2019
イベント30th Asia-Pacific Microwave Conference, APMC 2018 - Kyoto, 日本
継続期間: 11 6 201811 9 2018

出版物シリーズ

名前Asia-Pacific Microwave Conference Proceedings, APMC
2018-November

会議

会議30th Asia-Pacific Microwave Conference, APMC 2018
日本
Kyoto
期間11/6/1811/9/18

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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  • これを引用

    Mansour, I., Mansour, M., Aboualalaa, M., Allam, A., Abdel-Rahman, A. B., Abo-Zahhad, M., & Pokharel, R. K. (2019). 70% Improvement in Q-factor of spiral inductor and its application in switched K-band VCO using 0.18 um CMOS technology. : 2018 Asia-Pacific Microwave Conference, APMC 2018 - Proceedings (pp. 1133-1135). [8617138] (Asia-Pacific Microwave Conference Proceedings, APMC; 巻数 2018-November). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.23919/APMC.2018.8617138