Parallel PWMs Based Fully Digital Transmitter with Wide Carrier Frequency Range
The carrier-frequency (CF) and intermediate-frequency (IF) pulse-width modulators (PWMs) based on delay lines are proposed, where baseband signals are conveyed by both positions and pulse widths or densities of the carrier clock. By combining IF-PWM and precorrected CF-PWM, a fully digital transmitt...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2013/373429 |
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| _version_ | 1849404786025168896 |
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| author | Bo Zhou Kun Zhang Wenbiao Zhou Yanjun Zhang Dake Liu |
| author_facet | Bo Zhou Kun Zhang Wenbiao Zhou Yanjun Zhang Dake Liu |
| author_sort | Bo Zhou |
| collection | DOAJ |
| description | The carrier-frequency (CF) and intermediate-frequency (IF) pulse-width modulators (PWMs) based on delay lines are proposed, where baseband signals are conveyed by both positions and pulse widths or densities of the carrier clock. By combining IF-PWM and precorrected CF-PWM, a fully digital transmitter with unit-delay autocalibration is implemented in 180 nm CMOS for high reconfiguration. The proposed architecture achieves wide CF range of 2 M–1 GHz, high power efficiency of 70%, and low error vector magnitude (EVM) of 3%, with spectrum purity of 20 dB optimized in comparison to the existing designs. |
| format | Article |
| id | doaj-art-9a897525061e4e63af4d622cce7673df |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-9a897525061e4e63af4d622cce7673df2025-08-20T03:36:53ZengWileyThe Scientific World Journal1537-744X2013-01-01201310.1155/2013/373429373429Parallel PWMs Based Fully Digital Transmitter with Wide Carrier Frequency RangeBo Zhou0Kun Zhang1Wenbiao Zhou2Yanjun Zhang3Dake Liu4School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Information and Electronics, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Information and Electronics, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Information and Electronics, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Information and Electronics, Beijing Institute of Technology, Beijing 100081, ChinaThe carrier-frequency (CF) and intermediate-frequency (IF) pulse-width modulators (PWMs) based on delay lines are proposed, where baseband signals are conveyed by both positions and pulse widths or densities of the carrier clock. By combining IF-PWM and precorrected CF-PWM, a fully digital transmitter with unit-delay autocalibration is implemented in 180 nm CMOS for high reconfiguration. The proposed architecture achieves wide CF range of 2 M–1 GHz, high power efficiency of 70%, and low error vector magnitude (EVM) of 3%, with spectrum purity of 20 dB optimized in comparison to the existing designs.http://dx.doi.org/10.1155/2013/373429 |
| spellingShingle | Bo Zhou Kun Zhang Wenbiao Zhou Yanjun Zhang Dake Liu Parallel PWMs Based Fully Digital Transmitter with Wide Carrier Frequency Range The Scientific World Journal |
| title | Parallel PWMs Based Fully Digital Transmitter with Wide Carrier Frequency Range |
| title_full | Parallel PWMs Based Fully Digital Transmitter with Wide Carrier Frequency Range |
| title_fullStr | Parallel PWMs Based Fully Digital Transmitter with Wide Carrier Frequency Range |
| title_full_unstemmed | Parallel PWMs Based Fully Digital Transmitter with Wide Carrier Frequency Range |
| title_short | Parallel PWMs Based Fully Digital Transmitter with Wide Carrier Frequency Range |
| title_sort | parallel pwms based fully digital transmitter with wide carrier frequency range |
| url | http://dx.doi.org/10.1155/2013/373429 |
| work_keys_str_mv | AT bozhou parallelpwmsbasedfullydigitaltransmitterwithwidecarrierfrequencyrange AT kunzhang parallelpwmsbasedfullydigitaltransmitterwithwidecarrierfrequencyrange AT wenbiaozhou parallelpwmsbasedfullydigitaltransmitterwithwidecarrierfrequencyrange AT yanjunzhang parallelpwmsbasedfullydigitaltransmitterwithwidecarrierfrequencyrange AT dakeliu parallelpwmsbasedfullydigitaltransmitterwithwidecarrierfrequencyrange |