An energy-efficient all-digital UWB transmitter employing dual capacitively-coupled pulse-shaping drivers
This paper presents an all-digital, non-coherent, pulsed-UWB transmitter. By exploiting relaxed center frequency tolerances in non-coherent wideband communication, the transmitter synthesizes UWB pulses from an energy-efficient, single-ended digital ring oscillator. Dual capacitively coupled digital...
| Main Authors: | , , |
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| Format: | Article |
| Language: | en_US |
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Institute of Electrical and Electronics Engineers
2010
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| Online Access: | http://hdl.handle.net/1721.1/59989 https://orcid.org/0000-0002-5977-2748 |
| _version_ | 1811083923563741184 |
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| author | Mercier, Patrick Philip Daly, Denis C. Chandrakasan, Anantha P. |
| author2 | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science |
| author_facet | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Mercier, Patrick Philip Daly, Denis C. Chandrakasan, Anantha P. |
| author_sort | Mercier, Patrick Philip |
| collection | MIT |
| description | This paper presents an all-digital, non-coherent, pulsed-UWB transmitter. By exploiting relaxed center frequency tolerances in non-coherent wideband communication, the transmitter synthesizes UWB pulses from an energy-efficient, single-ended digital ring oscillator. Dual capacitively coupled digital power amplifiers (PAs) are used in tandem to attenuate low frequency content typically associated with single-ended digital circuits driving single-ended antennas. Furthermore, four level digital pulse shaping is employed to attenuate RF sidelobes, resulting in FCC compliant operation in the 3.5, 4.0, and 4.5 GHz IEEE 802.15.4a bands without the use of any off-chip filters or large passive components. The transmitter is fabricated in a 90 nm CMOS process and occupies a core area of 0.07 mm2 . The entirely digital architecture consumes zero static bias current, resulting in an energy efficiency of 17.5 pJ/pulse at data rates up to 15.6 Mb/s. |
| first_indexed | 2024-09-23T12:41:46Z |
| format | Article |
| id | mit-1721.1/59989 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T12:41:46Z |
| publishDate | 2010 |
| publisher | Institute of Electrical and Electronics Engineers |
| record_format | dspace |
| spelling | mit-1721.1/599892022-09-28T09:27:28Z An energy-efficient all-digital UWB transmitter employing dual capacitively-coupled pulse-shaping drivers Mercier, Patrick Philip Daly, Denis C. Chandrakasan, Anantha P. Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology. Microsystems Technology Laboratories Chandrakasan, Anantha P. Mercier, Patrick Philip Daly, Denis C. Chandrakasan, Anantha P. This paper presents an all-digital, non-coherent, pulsed-UWB transmitter. By exploiting relaxed center frequency tolerances in non-coherent wideband communication, the transmitter synthesizes UWB pulses from an energy-efficient, single-ended digital ring oscillator. Dual capacitively coupled digital power amplifiers (PAs) are used in tandem to attenuate low frequency content typically associated with single-ended digital circuits driving single-ended antennas. Furthermore, four level digital pulse shaping is employed to attenuate RF sidelobes, resulting in FCC compliant operation in the 3.5, 4.0, and 4.5 GHz IEEE 802.15.4a bands without the use of any off-chip filters or large passive components. The transmitter is fabricated in a 90 nm CMOS process and occupies a core area of 0.07 mm2 . The entirely digital architecture consumes zero static bias current, resulting in an energy efficiency of 17.5 pJ/pulse at data rates up to 15.6 Mb/s. United States. Defense Advanced Research Projects Agency (DARPA) (HI-MEMS Contract FA8650-07-C-7704) Natural Sciences and Engineering Research Council of Canada (NSERC) 2010-11-15T14:51:09Z 2010-11-15T14:51:09Z 2009-05 2009-03 Article http://purl.org/eprint/type/ConferencePaper 0018-9200 INSPEC Accession Number: 10667200 http://hdl.handle.net/1721.1/59989 Mercier, P.P., D.C. Daly, and A.P. Chandrakasan. “An Energy-Efficient All-Digital UWB Transmitter Employing Dual Capacitively-Coupled Pulse-Shaping Drivers.” Solid-State Circuits, IEEE Journal of 44.6 (2009): 1679-1688. © Copyright 2010 IEEE https://orcid.org/0000-0002-5977-2748 en_US http://dx.doi.org/10.1109/JSSC.2009.2020466 IEEE Journal of Solid-State Circuits Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Institute of Electrical and Electronics Engineers IEEE |
| spellingShingle | Mercier, Patrick Philip Daly, Denis C. Chandrakasan, Anantha P. An energy-efficient all-digital UWB transmitter employing dual capacitively-coupled pulse-shaping drivers |
| title | An energy-efficient all-digital UWB transmitter employing dual capacitively-coupled pulse-shaping drivers |
| title_full | An energy-efficient all-digital UWB transmitter employing dual capacitively-coupled pulse-shaping drivers |
| title_fullStr | An energy-efficient all-digital UWB transmitter employing dual capacitively-coupled pulse-shaping drivers |
| title_full_unstemmed | An energy-efficient all-digital UWB transmitter employing dual capacitively-coupled pulse-shaping drivers |
| title_short | An energy-efficient all-digital UWB transmitter employing dual capacitively-coupled pulse-shaping drivers |
| title_sort | energy efficient all digital uwb transmitter employing dual capacitively coupled pulse shaping drivers |
| url | http://hdl.handle.net/1721.1/59989 https://orcid.org/0000-0002-5977-2748 |
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