Development of non-linear transfer functions for power amplifiers
A behavioural-level model for non-linear power amplifiers is developed based on measured gain compression (AM-AM) and phase distortion (AM-PM) characteristics. The measured envelope-dependent gain compression component must be transformed to its instantaneous form for analysis. An improved method is...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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2011
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| Subjects: | |
| Online Access: | http://shdl.mmu.edu.my/3360/ http://shdl.mmu.edu.my/3360/1/18.pdf |
| _version_ | 1848790307019161600 |
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| author | Ooi, B.Z.M. Lee, S.W. Chung, B.K. |
| author_facet | Ooi, B.Z.M. Lee, S.W. Chung, B.K. |
| author_sort | Ooi, B.Z.M. |
| building | MMU Institutional Repository |
| collection | Online Access |
| description | A behavioural-level model for non-linear power amplifiers is developed based on measured gain compression (AM-AM) and phase distortion (AM-PM) characteristics. The measured envelope-dependent gain compression component must be transformed to its instantaneous form for analysis. An improved method is proposed to perform this transformation using the measured 1 dB gain compression (P1 dB) and third-order intermodulation product (IP3) of a non-linear power amplifier. The authors also show that the phase distortion component depends only on the magnitude of the input signal and does not require a similar transformation. Using the proposed model, the simulated spectral regrowth and error vector magnitude (EVM) show a good match to the measured results of a 2.412 GHz Wireless Local Area Network (WLAN) GaAs field-effect transistor (FET) power amplifier. |
| first_indexed | 2025-11-14T18:10:32Z |
| format | Article |
| id | mmu-3360 |
| institution | Multimedia University |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T18:10:32Z |
| publishDate | 2011 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | mmu-33602014-03-05T02:45:56Z http://shdl.mmu.edu.my/3360/ Development of non-linear transfer functions for power amplifiers Ooi, B.Z.M. Lee, S.W. Chung, B.K. TA Engineering (General). Civil engineering (General) A behavioural-level model for non-linear power amplifiers is developed based on measured gain compression (AM-AM) and phase distortion (AM-PM) characteristics. The measured envelope-dependent gain compression component must be transformed to its instantaneous form for analysis. An improved method is proposed to perform this transformation using the measured 1 dB gain compression (P1 dB) and third-order intermodulation product (IP3) of a non-linear power amplifier. The authors also show that the phase distortion component depends only on the magnitude of the input signal and does not require a similar transformation. Using the proposed model, the simulated spectral regrowth and error vector magnitude (EVM) show a good match to the measured results of a 2.412 GHz Wireless Local Area Network (WLAN) GaAs field-effect transistor (FET) power amplifier. 2011-10 Article PeerReviewed text en http://shdl.mmu.edu.my/3360/1/18.pdf Ooi, B.Z.M. and Lee, S.W. and Chung, B.K. (2011) Development of non-linear transfer functions for power amplifiers. IET Microwaves, Antennas & Propagation, 5 (13). pp. 1654-1660. ISSN 17518725 http://dx.doi.org/10.1049/iet-map.2010.0442 doi:10.1049/iet-map.2010.0442 doi:10.1049/iet-map.2010.0442 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Ooi, B.Z.M. Lee, S.W. Chung, B.K. Development of non-linear transfer functions for power amplifiers |
| title | Development of non-linear transfer functions for power amplifiers |
| title_full | Development of non-linear transfer functions for power amplifiers |
| title_fullStr | Development of non-linear transfer functions for power amplifiers |
| title_full_unstemmed | Development of non-linear transfer functions for power amplifiers |
| title_short | Development of non-linear transfer functions for power amplifiers |
| title_sort | development of non-linear transfer functions for power amplifiers |
| topic | TA Engineering (General). Civil engineering (General) |
| url | http://shdl.mmu.edu.my/3360/ http://shdl.mmu.edu.my/3360/ http://shdl.mmu.edu.my/3360/ http://shdl.mmu.edu.my/3360/1/18.pdf |