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Simple Small-Signal HEMT Model Suitable for GaN Stability Analysis and Technologies Benchmarking

Received: 11 February 2021    Accepted: 20 February 2021    Published: 3 March 2021
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Abstract

This article deals with the extension of the small-signal model usage to GaN technologies benchmarking, and to the detection of internal oscillations occurring in highly optimized multi-finger GaN high-electron-mobility transistors (HEMTs). The proposed small-signal model consists of only 14 circuit elements. Its simple semi-analytical extraction procedure is developed in Keysight ADS circuit simulator, letting instantaneous comparison between modelled and simulated small-signal parameters. The simplicity and the adaptability of the technique always ensures a physical model parameter extraction. The technique is demonstrated for various technology processes, layouts, dimensions, and for three commercially available GaN vendors. The extracted data and the number of circuit elements are used to benchmark GaN technologies in terms of bias dependency, efficiency, and static linearity. By coupling the small-signal model to the electromagnetic (EM) GaN HEMT layout simulation results in a powerful tool for detecting odd-mode and even-mode instabilities. The technique is proven for various GaN basic cells as well as for power bars. Even prior to structure fabrication, the tool can be used to analyze its stability behavior by exploring its layout.

Published in World Journal of Applied Physics (Volume 6, Issue 1)
DOI 10.11648/j.wjap.20210601.11
Page(s) 1-8
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2021. Published by Science Publishing Group

Keywords

HEMT, Small-Signal, Direct-Extraction, Stability, Odd-Modes, Even-Modes, Power Amplifiers, Benchmark

References
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[2] A. S. Hussein and A. H. Jarndal “Reliable Hybrid Small-Signal Modeling of GaN. HEMTs Based on Particle-Swarm-Optimization,” IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, Vol. 9, pp. 1816–1824, Sep. 2018.
[3] X. Du, S. K. Dhar, A. Jarndal, C Storey, M. Helaoui, S. Wingar, C. J. You, J. Cai*, F. M. Ghannouchi “Reliable Parameter Extraction of Asymmetric GaN-based Heterojunction Field Effect Transistors,” EuMiC, September 2018, pp. 137–141
[4] H. Aoki, H. Sakairi, N. Kuroda, Y. Nakamura, K. Chikamatsu, K. Nakahara “A Small Signal AC Model Using Scalable Drain Current Equations of AlGaN/GaN MIS Enhancement HEMT,” RFIC, June 2018, pp. 80–83.
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[6] G. van der Bent, A. P. de Hek, F. E. van Vliet “EM-Based GaN Transistor Small-Signal Model Scaling,” EuMiC, September 2018, pp. 329–333
[7] A. Issaoun, P. Hammes, M. Fagerlind, F. Chai, T. Roedle “On Stability Analysis and Loop Oscillation of Multi-Finger GaN FET Cells for High Power Amplifiers”, EuMiC, September 2018, pp. 329–333
[8] A. Jarndal, R. Essaadali, and A. B. Kouki “A reliable model parameter extraction method applied to AlGaN/GaN HEMTs,” IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, vol. 35, no. 2, pp. 211–219, Feb. 2016
[9] Y. lia, Y. Xu, Y. Wu, R. Xu, L. Zhou, T. Chen, B. Zhang “A robust small-signal equivalent circuit model for AIGaN/GaN HEMTs up to 110 GHz,” IMWS-AMP, July 2016, pp. 1–4.
[10] A. Jarndal and G. Kompa “A new small-signal modeling approach applied to GaN devices,” IEEE Trans. Microwave Theory Techniques, vol. 53, no. 11, pp. 3440–3448, Nov. 2005.
[11] I. Kwon, Mi. Je, K. Lee, H. Shin “A simple and analytical parameter-extraction method of a microwave MOSFET,” IEEE Trans. Microwave Theory Techniques, vol. 50, no. 6, pp. 1503–1508, June 2002.
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[13] U. Radhakrishna, P. Choi, J. Grajal, L. Peh, T. Palacios, D. Antoniadis “Study of RF-circuit Linearity Performance of GAN HEMT Technology Using the MVSG Compact Device Model,” IEDM, December 2016, pp. 75–78.
[14] R, Gigofré, P. Colantonio, and F. Gianinni. “A Design Approach to Maximize the Efficiency vs. Linearity Trade-Off in Fixed and Modulated Load GaN Power Amplifiers”, IEEE Access, Vol. 6, 9247 – 9255, February 2018.
[15] L. C. Nunes, P. M. Cabral, J. C. Pedro, "AM/PM distortion in GaN Doherty power amplifiers", IEEE MTT-S, June 2014, pp. 1-4
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[17] W. Struble and A. Plazker, "A Rigorous Yet Simple Method for Determining Stability of Linear N-port Networks," IEEE GaAs IC Symp. Dig., pp. 251-254, 1993.
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Cite This Article
  • APA Style

    Ammar Issaoun, Thomas Roedle. (2021). Simple Small-Signal HEMT Model Suitable for GaN Stability Analysis and Technologies Benchmarking. World Journal of Applied Physics, 6(1), 1-8. https://doi.org/10.11648/j.wjap.20210601.11

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    ACS Style

    Ammar Issaoun; Thomas Roedle. Simple Small-Signal HEMT Model Suitable for GaN Stability Analysis and Technologies Benchmarking. World J. Appl. Phys. 2021, 6(1), 1-8. doi: 10.11648/j.wjap.20210601.11

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    AMA Style

    Ammar Issaoun, Thomas Roedle. Simple Small-Signal HEMT Model Suitable for GaN Stability Analysis and Technologies Benchmarking. World J Appl Phys. 2021;6(1):1-8. doi: 10.11648/j.wjap.20210601.11

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  • @article{10.11648/j.wjap.20210601.11,
      author = {Ammar Issaoun and Thomas Roedle},
      title = {Simple Small-Signal HEMT Model Suitable for GaN Stability Analysis and Technologies Benchmarking},
      journal = {World Journal of Applied Physics},
      volume = {6},
      number = {1},
      pages = {1-8},
      doi = {10.11648/j.wjap.20210601.11},
      url = {https://doi.org/10.11648/j.wjap.20210601.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.wjap.20210601.11},
      abstract = {This article deals with the extension of the small-signal model usage to GaN technologies benchmarking, and to the detection of internal oscillations occurring in highly optimized multi-finger GaN high-electron-mobility transistors (HEMTs). The proposed small-signal model consists of only 14 circuit elements. Its simple semi-analytical extraction procedure is developed in Keysight ADS circuit simulator, letting instantaneous comparison between modelled and simulated small-signal parameters. The simplicity and the adaptability of the technique always ensures a physical model parameter extraction. The technique is demonstrated for various technology processes, layouts, dimensions, and for three commercially available GaN vendors. The extracted data and the number of circuit elements are used to benchmark GaN technologies in terms of bias dependency, efficiency, and static linearity. By coupling the small-signal model to the electromagnetic (EM) GaN HEMT layout simulation results in a powerful tool for detecting odd-mode and even-mode instabilities. The technique is proven for various GaN basic cells as well as for power bars. Even prior to structure fabrication, the tool can be used to analyze its stability behavior by exploring its layout.},
     year = {2021}
    }
    

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  • TY  - JOUR
    T1  - Simple Small-Signal HEMT Model Suitable for GaN Stability Analysis and Technologies Benchmarking
    AU  - Ammar Issaoun
    AU  - Thomas Roedle
    Y1  - 2021/03/03
    PY  - 2021
    N1  - https://doi.org/10.11648/j.wjap.20210601.11
    DO  - 10.11648/j.wjap.20210601.11
    T2  - World Journal of Applied Physics
    JF  - World Journal of Applied Physics
    JO  - World Journal of Applied Physics
    SP  - 1
    EP  - 8
    PB  - Science Publishing Group
    SN  - 2637-6008
    UR  - https://doi.org/10.11648/j.wjap.20210601.11
    AB  - This article deals with the extension of the small-signal model usage to GaN technologies benchmarking, and to the detection of internal oscillations occurring in highly optimized multi-finger GaN high-electron-mobility transistors (HEMTs). The proposed small-signal model consists of only 14 circuit elements. Its simple semi-analytical extraction procedure is developed in Keysight ADS circuit simulator, letting instantaneous comparison between modelled and simulated small-signal parameters. The simplicity and the adaptability of the technique always ensures a physical model parameter extraction. The technique is demonstrated for various technology processes, layouts, dimensions, and for three commercially available GaN vendors. The extracted data and the number of circuit elements are used to benchmark GaN technologies in terms of bias dependency, efficiency, and static linearity. By coupling the small-signal model to the electromagnetic (EM) GaN HEMT layout simulation results in a powerful tool for detecting odd-mode and even-mode instabilities. The technique is proven for various GaN basic cells as well as for power bars. Even prior to structure fabrication, the tool can be used to analyze its stability behavior by exploring its layout.
    VL  - 6
    IS  - 1
    ER  - 

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Author Information
  • GaN Front-End Technology, Ampleon, Nijmegen, The Netherlands

  • GaN Front-End Technology, Ampleon, Nijmegen, The Netherlands

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