A 0.8 V Low-Power Wide-Tuning-Range CMOS VCO for 802.11ac and IoT C-Band Applications
This paper presents a 0.8 V low-power CMOS voltage-controlled oscillator (VCO) with a wide tuning range, fabricated using a TSMC 0.18 μm process. The proposed design incorporates body-biasing techniques and an optimized varactor structure to achieve a tuning range of 1124 MHz (5.829–4.705 GHz) and l...
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| Language: | English |
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MDPI AG
2025-05-01
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| Series: | Journal of Low Power Electronics and Applications |
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| Online Access: | https://www.mdpi.com/2079-9268/15/2/32 |
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| author | Jung-Jen Hsu Yao-Chian Lin Stephen J. H. Yang |
| author_facet | Jung-Jen Hsu Yao-Chian Lin Stephen J. H. Yang |
| author_sort | Jung-Jen Hsu |
| collection | DOAJ |
| description | This paper presents a 0.8 V low-power CMOS voltage-controlled oscillator (VCO) with a wide tuning range, fabricated using a TSMC 0.18 μm process. The proposed design incorporates body-biasing techniques and an optimized varactor structure to achieve a tuning range of 1124 MHz (5.829–4.705 GHz) and low phase noise of −117.6 dBc/Hz at a 1 MHz offset. Operating at an ultra-low supply voltage of 0.8 V, the VCO consumes only 3.4 mW, demonstrating excellent power efficiency. A buffer circuit is also employed to enhance output symmetry and suppress flicker noise without introducing additional control complexity. With a figure-of-merit (FOM) of −188.6 dBc/Hz and a wide tuning range of 22.2%, the proposed VCO is well-suited for modern low-power communication systems, including 802.11ac, 5G transceivers, satellite links, and compact IoT devices. |
| format | Article |
| id | doaj-art-21d36c6d2ccd468abec349b23cba4058 |
| institution | Matheson Library |
| issn | 2079-9268 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Low Power Electronics and Applications |
| spelling | doaj-art-21d36c6d2ccd468abec349b23cba40582025-06-25T14:00:36ZengMDPI AGJournal of Low Power Electronics and Applications2079-92682025-05-011523210.3390/jlpea15020032A 0.8 V Low-Power Wide-Tuning-Range CMOS VCO for 802.11ac and IoT C-Band ApplicationsJung-Jen Hsu0Yao-Chian Lin1Stephen J. H. Yang2Department of Computer Science & Information Engineering, National Central University, Zhongli Dist., Taoyuan City 320317, TaiwanDepartment of Electrical Engineering, National Taiwan Ocean University, Keelung City 202301, TaiwanDepartment of Computer Science & Information Engineering, National Central University, Zhongli Dist., Taoyuan City 320317, TaiwanThis paper presents a 0.8 V low-power CMOS voltage-controlled oscillator (VCO) with a wide tuning range, fabricated using a TSMC 0.18 μm process. The proposed design incorporates body-biasing techniques and an optimized varactor structure to achieve a tuning range of 1124 MHz (5.829–4.705 GHz) and low phase noise of −117.6 dBc/Hz at a 1 MHz offset. Operating at an ultra-low supply voltage of 0.8 V, the VCO consumes only 3.4 mW, demonstrating excellent power efficiency. A buffer circuit is also employed to enhance output symmetry and suppress flicker noise without introducing additional control complexity. With a figure-of-merit (FOM) of −188.6 dBc/Hz and a wide tuning range of 22.2%, the proposed VCO is well-suited for modern low-power communication systems, including 802.11ac, 5G transceivers, satellite links, and compact IoT devices.https://www.mdpi.com/2079-9268/15/2/32VCOtuning rangephase noiselow-power designC-bandbody-bias technique |
| spellingShingle | Jung-Jen Hsu Yao-Chian Lin Stephen J. H. Yang A 0.8 V Low-Power Wide-Tuning-Range CMOS VCO for 802.11ac and IoT C-Band Applications Journal of Low Power Electronics and Applications VCO tuning range phase noise low-power design C-band body-bias technique |
| title | A 0.8 V Low-Power Wide-Tuning-Range CMOS VCO for 802.11ac and IoT C-Band Applications |
| title_full | A 0.8 V Low-Power Wide-Tuning-Range CMOS VCO for 802.11ac and IoT C-Band Applications |
| title_fullStr | A 0.8 V Low-Power Wide-Tuning-Range CMOS VCO for 802.11ac and IoT C-Band Applications |
| title_full_unstemmed | A 0.8 V Low-Power Wide-Tuning-Range CMOS VCO for 802.11ac and IoT C-Band Applications |
| title_short | A 0.8 V Low-Power Wide-Tuning-Range CMOS VCO for 802.11ac and IoT C-Band Applications |
| title_sort | 0 8 v low power wide tuning range cmos vco for 802 11ac and iot c band applications |
| topic | VCO tuning range phase noise low-power design C-band body-bias technique |
| url | https://www.mdpi.com/2079-9268/15/2/32 |
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