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A GaN Switchless-Class-G-Doherty-Continuum Power Amplifier With 140%
提出一种基于开关无类G-多尔蒂连续理论的超宽带高效功率放大器设计
36.6–38.6 dBm输出功率, 38%–56%效率, 1.35至7.6 GHz频段, 140%分数带宽
功率放大器多尔蒂结构氮化镓宽带设计效率优化
▸开关无类G-多尔蒂连续功率放大器(SDCPA)设计
▸频率自适应传输线(FATL)插入技术
▸耦合谐振器(CR)实现宽带FATL片上集成
Abstract
This article presents the design and analysis of an
ultra-wideband back-off efficient power amplifier (PA) based on
switchless-Class-G-Doherty-continuum theory. Switchless Class-
G (SLCG) PA has a great potential in the RF bandwidth (BW),
but shows limited signal BW and di fficulty in parasitics absorp-
tion. The situation for Doherty PA (DPA) is exactly the opposite.
To combine the merits of SLCG PA and DPA, we propose an
SLCG-Doherty-continuum PA (SDCPA), which is constructed by
simply inserting a f