Core Concepts
Development of a highly linear and load-insensitive three-way load-modulated power amplifier with reconfigurability.
Abstract
The article introduces a novel linear hybrid asymmetrical load-modulated balanced amplifier (H-ALMBA) with multi-band reconfigurability and antenna-VSWR resilience. It presents theoretical analysis, design optimization, and practical implementation of the amplifier. Key highlights include load modulation behavior, reconfiguration for load mismatch resilience, and performance verification using an emulated model.
Stats
Efficiency of 56.8%−72.9% at peak power
Efficiency of 49.8%−61.2% at 10-dB PBO
EVM of 3.1% and ACPR of -39 dB in modulated evaluation
Average efficiency of up to 52%
Quotes
"The load modulation behavior of H-ALMBA can be insensitive to load mismatch."