A 0.079 mm2 2.1-to-4.2 GHz ring-VCO employing programmable current topology
Purpose: The purpose of this work in designing a wideband ring voltage-controlled oscillator (VCO) based on programmable current topology. It occupies a very tiny area yet achieving a good phase noise performance, which is suitable to be implemented in cost-effective and wideband frequency synthesiz...
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| Format: | Article |
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Emerald
2018
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| _version_ | 1825721869671596032 |
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| author | Awais, Muhammad Ramiah, Harikrishnan Lim, Chee Cheow Chuah, Joon Huang |
| author_facet | Awais, Muhammad Ramiah, Harikrishnan Lim, Chee Cheow Chuah, Joon Huang |
| author_sort | Awais, Muhammad |
| collection | UM |
| description | Purpose: The purpose of this work in designing a wideband ring voltage-controlled oscillator (VCO) based on programmable current topology. It occupies a very tiny area yet achieving a good phase noise performance, which is suitable to be implemented in cost-effective and wideband frequency synthesizers. Design/methodology/approach: The tuning range and gain are improved by dividing the VCO tuning curve into multiple curves controlled by programmable current sources without introducing additional parasitic capacitance. Findings: Fabricated in 130-nm standard complementary metal oxide semiconductor technology and occupying an area of 0.079 mm2, the VCO is tunable from 2.05 to 4.19 GHz, with a tuning percentage of 68.5 per cent. The VCO measures a phase noise performance of −96.7 dBc/Hz at an offset of 1 MHz from a 4.19 GHz carrier while consuming an average current of 6.5 mA, achieving figure of merit (FoM) and FoMT of −158.9 and −175.6 dBc/Hz, respectively. Originality/value: The proposed design uses programmable current topology without introducing parasitic capacitance, hence achieving wideband operation. It also occupies a tiny area and achieves a good phase noise performance. |
| first_indexed | 2024-03-06T05:56:56Z |
| format | Article |
| id | um.eprints-22426 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:56:56Z |
| publishDate | 2018 |
| publisher | Emerald |
| record_format | dspace |
| spelling | um.eprints-224262019-09-19T06:13:05Z http://eprints.um.edu.my/22426/ A 0.079 mm2 2.1-to-4.2 GHz ring-VCO employing programmable current topology Awais, Muhammad Ramiah, Harikrishnan Lim, Chee Cheow Chuah, Joon Huang TK Electrical engineering. Electronics Nuclear engineering Purpose: The purpose of this work in designing a wideband ring voltage-controlled oscillator (VCO) based on programmable current topology. It occupies a very tiny area yet achieving a good phase noise performance, which is suitable to be implemented in cost-effective and wideband frequency synthesizers. Design/methodology/approach: The tuning range and gain are improved by dividing the VCO tuning curve into multiple curves controlled by programmable current sources without introducing additional parasitic capacitance. Findings: Fabricated in 130-nm standard complementary metal oxide semiconductor technology and occupying an area of 0.079 mm2, the VCO is tunable from 2.05 to 4.19 GHz, with a tuning percentage of 68.5 per cent. The VCO measures a phase noise performance of −96.7 dBc/Hz at an offset of 1 MHz from a 4.19 GHz carrier while consuming an average current of 6.5 mA, achieving figure of merit (FoM) and FoMT of −158.9 and −175.6 dBc/Hz, respectively. Originality/value: The proposed design uses programmable current topology without introducing parasitic capacitance, hence achieving wideband operation. It also occupies a tiny area and achieves a good phase noise performance. Emerald 2018 Article PeerReviewed Awais, Muhammad and Ramiah, Harikrishnan and Lim, Chee Cheow and Chuah, Joon Huang (2018) A 0.079 mm2 2.1-to-4.2 GHz ring-VCO employing programmable current topology. Microelectronics International, 35 (2). pp. 85-91. ISSN 1356-5362, DOI https://doi.org/10.1108/MI-02-2017-0003 <https://doi.org/10.1108/MI-02-2017-0003>. https://doi.org/10.1108/MI-02-2017-0003 doi:10.1108/MI-02-2017-0003 |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Awais, Muhammad Ramiah, Harikrishnan Lim, Chee Cheow Chuah, Joon Huang A 0.079 mm2 2.1-to-4.2 GHz ring-VCO employing programmable current topology |
| title | A 0.079 mm2 2.1-to-4.2 GHz ring-VCO employing programmable current topology |
| title_full | A 0.079 mm2 2.1-to-4.2 GHz ring-VCO employing programmable current topology |
| title_fullStr | A 0.079 mm2 2.1-to-4.2 GHz ring-VCO employing programmable current topology |
| title_full_unstemmed | A 0.079 mm2 2.1-to-4.2 GHz ring-VCO employing programmable current topology |
| title_short | A 0.079 mm2 2.1-to-4.2 GHz ring-VCO employing programmable current topology |
| title_sort | 0 079 mm2 2 1 to 4 2 ghz ring vco employing programmable current topology |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
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