ORCA
Online Research @ CardiffÂ
Browse by Current Cardiff authors
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Number of items: 15.
| Alsahali, S., Gecan, D., Alt, A., Chen, P., Woodington, S., Sheikh, A., Tasker, P. and Lees, J. 2020. Modulated rapid load pull system for the emulation of envelope tracking power amplifiers. Electronics Letters 56 (7) , pp. 325-328. 10.1049/el.2019.3896 |
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| Chen, Peng, Quaglia, Roberto, Lees, Jonathan, Alt, Alexander and Tasker, Paul 2020. Efficiency enhancement of a broadband sequential power amplifier using envelope tracking. Presented at: 2020 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC), Cardiff, 16-17 July 2020. |
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| Chen, Peng, Alt, Alexander, Moreno Rubio, Jorge, Alsahali, Sattam, Lees, Jonathan, Quaglia, Roberto, Casbon, Michael and Tasker, Paul J. 2020. Optimising linearity of envelope tracking power amplifier using baseband linearisation approach. Presented at: 2020 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC), Cardiff, 16-17 July 2020. |
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| Alsahali, Sattam, Alt, Alexander, Chen, Peng, Wang, Guofeng, Tasker, Paul and Lees, Jonathan 2019. Supply modulator ripple in envelope tracking systems - effects and countermeasures. Presented at: 49th European Microwave Conference (EuMC 2019), Paris, France, 01-03 October 2019. 2019 49th European Microwave Conference (EuMC). IEEE, pp. 710-713. 10.23919/EuMC.2019.8910890 |
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| Mokhti, Zulhazmi A., Lees, Jonathan, Cassan, Cedric, Alt, Alexander and Tasker, Paul J. 2019. The nonlinear drain-source capacitance effect on continuous-mode class-B/J power amplifiers. IEEE Transactions on Microwave Theory and Techniques 67 (7) , pp. 2741-2747. 10.1109/TMTT.2019.2918309 |
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Alt, Alexander, Hirshy, Hassan, Jiang, Sheng, Lee, Kean Boon, Casbon, Michael, Chen, Peng, Houston, Peter, Tasker, Paul and Lees, Jonathan
2019.
Analysis of gain variation with changing supply voltages in GaN HEMTs for envelope tracking power amplifiers.
IEEE Transactions on Microwave Theory and Techniques
67
(7)
, pp. 2495-2504.
10.1109/TMTT.2019.2916404
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| Alsahali, Sattam, Gecan, Dragan, Alt, Alexander, Wang, Guofeng, Syed Anera, Syed M. H., Chen, Peng, Woodington, Simon, Sheikh, Aamir, Tasker, Paul and Lees, Jonathan 2019. A novel modulated rapid load pull system with digital pre-distortion capabilities. Presented at: 2019 93rd ARFTG Microwave Measurement Conference (ARFTG), Boston, MA, USA, 7 June 2019. 10.1109/ARFTG.2019.8739220 |
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| Alt, Alexander, Chen, Peng, Alsahali, Sattam, Wang, Guofeng, Quaglia, Roberto, Tasker, Paul and Lees, Jonathan 2019. Impact of the input impedance on the linearity of supply modulated GaN HEMT power amplifiers. Presented at: European Microwave Week 2019 (EuMW2019), 29 September - 03 October 2019. |
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| Alt, Alexander, Quaglia, Roberto, Chen, Peng, Alsahali, Sattam, Tasker, Paul and Lees, Jonathan 2019. Class B* - A new high efficiency RF DC/DC converter concept using second harmonic generation/injection. Presented at: WPTC 2018: IEEE MTT-S Wireless Power Transfer Conference, Montreal, Quebec, 3-7 June 2018. 2018 IEEE Wireless Power Transfer Conference (WPTC). IEEE, 10.1109/WPT.2018.8639317 |
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| Alt, Alexander, Quaglia, Roberto, Chen, Peng, Alsahali, Sattam, Tasker, Paul J. and Lees, Jonathan 2018. Analysis of highly efficient self-synchronous class-F microwave rectifiers using waveform engineering. Presented at: 48th European Microwave Conference (EuMC), Madrid, Spain, 23-27 Sep 2018. Proceedings of the 48th European Microwave Conference. Piscataway, NJ: IEEE, pp. 773-776. 10.23919/EuMC.2018.8541564 |
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| Chen, Peng, Alsahali, Sattam, Alt, Alexander, Lees, Jonathan and Tasker, Paul J. 2018. Behavioral modeling of GaN power amplifiers using long short-term memory networks. Presented at: International Workshop on Integrated Nonlinear Microwave and Millimetre-wave Circuits (INMMIC), Brive La Gaillarde, France, 5-6 Jul 2018. International Workshop on Integrated Nonlinear Microwave and Millimetre-wave Circuits (INMMIC). IEEE, 10.1109/INMMIC.2018.8429984 |
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| Alt, Alexander, Chen, Peng, Alsahali, Sattam, Quaglia, Roberto, Tasker, Paul and Lees, Jonathan 2018. Comparing FET technologies in terms of their suitability for broadband envelope tracking power amplifiers. Presented at: InMMIC, Brive La Gaillarde, 5-6 July 2018. -. |
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Alt, Alexander and Lees, Jonathan
2017.
Improving efficiency, linearity and linearisability of an asymmetric doherty power amplifier by modulating the peaking amplifier’s supply voltage.
Presented at: 20th EuMW 2017,
Nuremberg, Germany,
8-13 October 2017.
2017 47th European Microwave Conference (EuMC).
IEEE,
pp. 464-467.
10.23919/EuMC.2017.8230890
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| Alt, Alexander and Lees, Jonathan 2017. Improving efficiency, linearity and linearisability of an asymmetric doherty power amplifier by modulating the peaking Amplifier's supply voltage. Presented at: 47th European Microwave Conference (EuMC), Nurembourg, Germany, 10-12 October 2017. 2017 47th European Microwave Conference (EuMC). IEEE, pp. 464-467. 10.23919/EuMC.2017.8230890 |
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| Alt, Alexander, Schwerg, Nikolai, Wangler, Christian and Gruner, Daniel 2017. Concept for the implementation of very high directivity and decade bandwidth in compact microstrip directional couplers. Presented at: 2016 46th European Microwave Conference (EuMC), London, UK, 3-7 October 2017. 2016 46th European Microwave Conference (EuMC). IEEE, pp. 210-213. 10.1109/EuMC.2016.7824315 |
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