TY - JOUR
AU - He, Songbai
AB - Active load modulation and harmonic injection can be used to boost the power amplifier's (PA) efficiency, but these techniques must add a fundamental external source or a harmonic generator. In this paper, a two‐way power amplifier architecture is introduced to extend high‐efficiency operation bandwidth by utilizing concurrent active load modulation with a waveform mapping method. Active load modulation is realized in between the two branches with the aid of independent input amplitude and phase control. Based on a calculated waveform database, high‐efficiency operations for both transistors from 1 to 4 GHz are designed in a self‐defined optimization platform considering waveform distance and input parameters. Finally, this PA is fabricated and measured to offer 41.6 to 45.0 dBm power, 8.2 to 11.7 dB gain, and 56% to 89% drain efficiency from 0.85 to 3.85 GHz.
TI - A design of 1 to 4 GHz broadband high‐efficiency power amplifier with two‐way concurrent active load modulation method
JF - International Journal of Rf and Microwave Computer-Aided Engineering
DO - 10.1002/mmce.22640
DA - 2021-06-01
UR - https://www.deepdyve.com/lp/wiley/a-design-of-1-to-4-ghz-broadband-high-efficiency-power-amplifier-with-b5UDKXnL29
SP - n/a
EP - n/a
VL - 31
IS - 6
DP - DeepDyve
ER -