A Numerical Procedure to Determine the Power Intake/Delivery Capacity of a GaN RF Power Transistor over Broadband

KILINÇ S., Ejaz M. E., Yarman S. B., Özoğuz İ. S., Srivastava S., Nurellari E.

21st Mediterranean Microwave Symposium, MMS 2021, Pizzo Calabro, Italy, 9 - 13 May 2022, vol.2022-May identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 2022-May
  • Doi Number: 10.1109/mms55062.2022.9825519
  • City: Pizzo Calabro
  • Country: Italy
  • Keywords: Positive Real Functions, Foster Functions, Minimum Functions, Real Frequency Techniques, Broadband Matching, Gain-Bandwidth Limitation, Broadband Power Amplifier, GaN Transistor
  • Istanbul Technical University Affiliated: Yes

Abstract

© 2022 IEEE.In this paper, a novel 'Real Frequency Line Segment Technique' based numerical procedure is introduced to assess the gain-bandwidth limitations of the given source and load impedances, which in turn results in the ultimate RF-power intake/delivering performance of the amplifier. During the numerical performance assessments process, a robust tool called 'Virtual Gain Optimization' is presented. Finally, a new definition called 'Power-Performance-Product' is introduced to measure the quality of an active device. Examples are presented to assess the gain-bandwidth limitations of the given source and load pull impedances for the 45W-GaN power transistor of Wolfspeed 'CG2H40045' over 0.8-3.8 GHz bandwidth.