PERFORMANCE ENHANCEMENT OF LNA USING SERIES FEEDBACK

In this paper, a small-signal microwave transistor with the series inductive feedback application subject to the required noise figure (Freq) and output mismatching (VSWRout) is analyzed at the chosen bias condition (VDS, IDS). Performance measure functions like Noise Measure (M), Mismatch Loss (ML), and Figure of Merit (FOM) are used to choose the beneficial feedback value for the design of Low Noise Amplifier (LNA). Once the optimum feedback value is selected, then the LNA application of a series inductive feedback applied transistor subject to the required noise figure and output mismatching is simulated with the input and the output matching circuit at the chosen frequency.

___

  • [1] Dousset D., Issaoun A., Ghannouchi F. M., Kouki A.B.: “Wideband closed-form expressions for direct extraction of HBT small-signal parameters for all amplifier bias classes”, IEE Proc Circuits Devices Syst., 2005, 152, pp.441–450.
  • [2] Vijayakrishna V. J., Vaishnav S., DasGupta N., DasGupta A.: “Unified analytical model of HEMTs for analogue and digital applications”, IEE Proc Circuits Devices Syst., 2005, 152, pp.425–432.
  • [3] Seoane N. and Garcia-Loureiro A. J.: “Study of parallel numerical methods for semiconductor device simulation”, Int. J. Numerical Modelling Electron Networks Devices Fields, 2006, 19, pp.15–32.
  • [4] Güneş F., Güneş M., Fidan M.: “Performance characterization of a microwave transistor”, IEE Proceedings- Circuits Devices and Systems, 1994, 141-5, pp.337–344.
  • [5] Güneş F, Çetiner B. A., “Novel Smith chart formulation of performance characterization for a microwave transistor”, IEE Proc Circuits Devices and Syst., 1999, 145-6, pp.419–428.
  • [6] Demirel S., Güneş F.: “Performance characterization of a microwave transistor for maximum output power and the required noise”, IET Circuits, Devices and Systems, 2013, 7-1, pp. 9–20.
  • [7] Güneş F., Demirel, S.: “Performance characterization of a microwave transistor subject to the noise and matching requirements”, International Journal Circuit Theory and Applications 2016; 44-5, pp.1012-1028.
  • [8] Güneş F., Belen M. A., Mahouti P., “Competitive evolutionary algorithms for building performance database of a microwave transistor”, International Journal of Circuit Theory and Applications 2018; 46-2, pp.244-258.
  • [9] Albinsson B. M., “A graphic design method for matched low-noise amplifiers,” IEEE Trans. Microw. Theory Techn., Feb. 1990, 38-2, pp. 118–122.
  • [10] Henkes D.D., “A Design Tool for Improving the Input Match of Low Noise Amplifiers”, High Frequency Electronics, February 2007.
  • [11] Henkes D.D., “LNA Design Uses Series Feedback to Achieve Simultaneous Low Input VSWR and Low Noise”, Applied microwave and Wireless, October 1998, pp. 18-25.
  • [12] Vendelin G.D., “Feedback effects on the noise performance of GaAs MESFETs,” IEEE MTT-S Int. Microw. Symp. Dig., 12-14 May 1975, pp. 324–326.
  • [13] Boglione L., Pollard R. D., Postoyalko V., “Optimum noise-source reflection-coefficient design with feedback amplifiers,” IEEE Trans. Microw. Theory Techn., Mar 1997, 45-3, pp. 402–407,
  • [14] Victor A. and Nath J., “An analytic technique for trade-off of noise measure and mismatch loss for low noise amplifier design”, Proc. 11th Wireless and Microwave Tech. Conf. (WAMICON), 2010, pp. 1-4.
  • [15] Victor A. and Nath J., “An analytic and Graphical Method for LNA Design with Feedback”, High Frequency Electronics, June 2010, pp 16-27.
  • [16] Haus H. A. and Adler R. B., Circuit Theory of Linear Noisy Networks, New York, NY, USA: MIT Press, 1959.
  • [17] Iversen, “The effect of feedback on noise figure,” Proc. IEEE, March 1975, 63-3, pp. 540–542.
  • [18] Besser L., “Stability considerations of low-noise transistor amplifiers with simultaneous noise and power match”, IEEE MTT-S Int. Microwave Symp. Dig., 1975, pp. 327-329.
  • [19] Niclas K. B., “The exact noise figure of amplifiers with parallel feedback and lossy matching circuits,” IEEE Trans. Microwave Theory Tech., May 1982, vol. MTT-30, pp. 832–835,
  • [20] Niclas K. B., “Noise in broad band GaAs MESFET amplifiers with parallel feedback,” IEEE Trans. Microwave Theory Tech., Jan 1982, vol. MTT-30, pp. 63–70.
  • [21] Ciccognani W., Longhi PE., Colangeli S., Limiti E.: “Constant mismatch circles and application to low-noise microwave amplifier design”, IEEE Trans. Microwave Theory Tech., 2013, 61, (12), pp. 4154–4167.
  • [22] Lam V.M.T., Poole C. R., Yip P.C.L.: “Exact noise figure of a noisy two-port with feedback”, IEE Proceedings G-Circuits, Devices and Systems, August 1992, 139, (4), pp. 473-476.