Operational transconductance amplifier macromodel optimization for active piezoelectric filter design

Authors

  • Andrii Zazerin National Technical University of Ukraine “Kyiv Polytechnic Institute” 16 Polytechnichna Str., Kyiv, Ukraine 03056, Ukraine
  • Anatolii Orlov National Technical University of Ukraine “Kyiv Polytechnic Institute” 16 Polytechnichna Str., off. 124, Kyiv, Ukraine 03056, Ukraine
  • Oleksandr Bogdan National Technical University of Ukraine “Kyiv Polytechnic Institute”, Kyiv, Ukraine 16 Polytechnichna Str., off. 137, Kyiv, Ukraine 03056, Ukraine

DOI:

https://doi.org/10.15587/1729-4061.2013.19687

Keywords:

macromodel, OTA, FBAR, active filter, nonlinearity

Abstract

This work addresses the problem of optimal operational transconductance amplifier (OTA) macromodel creation in terms of its application in active FBAR filters. Existing macromodels of active elements are reviewed from their structure and application point of view. A nonlinear macromodel of OTA was developed on the basis of single-pole three-stage macromodel, which takes into account the necessary effects of real devices: the finite input and output impedances, the frequency dependence of transconductance coefficient and its nonlinearity behavior, noise characteristics. The features of presented solution include versatility of application in most of nowadays CAD systems, the ability to estimate with sufficient accuracy the frequency response of the filter and its performance, dynamic range, harmonic and noise analysis. Simple structure allows the speed-up of calculation and direct digital optimization techniques can be adopted to optimize the characteristics of the filter. The verification of macromodel was demonstrated on the example of FBAR connected to gyrator circuit, which showed high precision imitation of transistor-level circuit. The analysis of transient response and harmonic balance proved the acceptance of power series approximation of operation range. The use of two diodes outside this range allowed for modeling in wide input voltages range. The developed macromodel can be successfully used for the synthesis of active FBAR filters. 

Author Biographies

Andrii Zazerin, National Technical University of Ukraine “Kyiv Polytechnic Institute” 16 Polytechnichna Str., Kyiv, Ukraine 03056

Postgraduate student

Department of Microelectronics

Anatolii Orlov, National Technical University of Ukraine “Kyiv Polytechnic Institute” 16 Polytechnichna Str., off. 124, Kyiv, Ukraine 03056

PhD, Associate Professor

Department of Microelectronics

Oleksandr Bogdan, National Technical University of Ukraine “Kyiv Polytechnic Institute”, Kyiv, Ukraine 16 Polytechnichna Str., off. 137, Kyiv, Ukraine 03056

Deputy director

Scientific and Research Institute of Applied Electronics

References

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Published

2013-12-28

How to Cite

Zazerin, A., Orlov, A., & Bogdan, O. (2013). Operational transconductance amplifier macromodel optimization for active piezoelectric filter design. Eastern-European Journal of Enterprise Technologies, 6(12(66), 30–35. https://doi.org/10.15587/1729-4061.2013.19687

Issue

Vol. 6 No. 12(66) (2013): Physical and technological problems of radio engineering devices, telecommunication, nano-and microelectronics

Section

Physical and technological problems of radio engineering devices, telecommunication, nano-and microelectronics

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Copyright (c) 2014 Andrii Zazerin, Anatolii Orlov, Oleksandr Bogdan

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