Stability Analysis and Design Criteria of Paralleled-Device Power Amplifiers Under Large-Signal Regime

作者：Pantoli Leonardo^*; Leuzzi Giorgio; Santarelli Alberto; Filicori Fabio

来源：IEEE Transactions on Microwave Theory and Techniques, 2016, 64(5): 1442-1455.

DOI：10.1109/TMTT.2016.2539951

• Nonlinear circuits
• power amplifiers (PAs)
• stability

This paper describes a method for the stability analysis and stabilization criteria in multi-device paralleled power amplifiers (PA) under large-signal operating conditions. The symmetry of the amplifier is exploited for a simple and effective study of odd-and even-order modes. The overall stability analysis is transformed into a sequence of analyses on single-mode single-transistor large-signal equivalent amplifiers, which are carried out by using a conversion matrix approach. Examples of application of the method are provided on a 9-GHz GaAs pHEMT monolithic-microwave integrated-circuit (MMIC) PA and a 590-MHz power silicon bipolar hybrid microwave integrated-circuit (HMIC) PA.

• 出版日期2016-5