A Multiple Time-Scale Power Amplifier Behavioral Model for Linearity and Efficiency Calculations

作者：Pedro Jose C^*; Cabral Pedro M; Cunha Telmo R; Lavrador Pedro M

来源：IEEE Transactions on Microwave Theory and Techniques, 2013, 61(1): 606-615.

DOI：10.1109/TMTT.2012.2227779

• Behavioral models
• long term memory effects
• RF power amplifiers
• semiconductor device modeling

This work describes a new power amplifier, PA, behavioral model intended to predict both the PA amplitude and phase input-output signal relationship and the average or instantaneous dc power consumption and thus average or instantaneous signal-dependent efficiency. Hence, contrary to other previously published PA behavioral models, such a model is not only capable of describing the complex low-pass equivalent fundamental zone output, but also the real low-pass current consumption output. In addition, a special attention is paid to accurately account for the multiple time-scale dynamics shown by modern GaN HEMT based high power amplifiers.

• 出版日期2013-1