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A Low-Power 2/5.8-GHz CMOS LC-VCO for Multiband Wireless Communication Applications

A Low-Power 2/5.8-GHz CMOS LC-VCO for Multiband Wireless Communication Applications. Mei-Ling Yeh; Wan-Rone Liou; T.H. Chen; Y.C. Lin; Jyh-Jier Ho; Communications, Circuits and Systems Proceedings, 2006 International Conference on Volume 2,   25-28 June 2006 Page(s):825 - 828 積體電路設計研究所

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A Low-Power 2/5.8-GHz CMOS LC-VCO for Multiband Wireless Communication Applications

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  1. A Low-Power 2/5.8-GHz CMOS LC-VCO for MultibandWireless Communication Applications Mei-Ling Yeh; Wan-Rone Liou; T.H. Chen; Y.C. Lin; Jyh-Jier Ho; Communications, Circuits and Systems Proceedings, 2006 International Conference on Volume 2,   25-28 June 2006 Page(s):825 - 828 積體電路設計研究所 指導教授 : 林志明 教授 學生 : 郭峻瑋

  2. Outline • Abstract • Introduction • Circuit Design • Simulation Results • Conclusion

  3. Abstract • switched-inductor technique • 5.38 - 6.23 GHz and 1.78 - 2.07 GHz • -109 dBc/Hz @1 MHz and -112 dBc/Hz @1 MHz

  4. Introduction • combination of two inductors • more accurate oscillation frequency and easy frequency tuning control • switched inductors coarsely tune

  5. Circuit Design

  6. Simulation Results

  7. Measured VCO frequency spectrum at 1.8GHz

  8. Measured VCO frequency spectrum at 5.4GHz

  9. Simulated and measured frequency tuning range at 2-GHz frequency band

  10. Simulated and measured frequency tuning range at 5.8-GHz frequency band

  11. Conclusion

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