Microwave reflective tunable termination with high power handling capability

高频功率放大器设计的最新进展表明，采用可控匹配网络和有源匹配可以克服经典无源匹配的局限性，而且往往是同时进行的。本项目将研究如何设计可控终端，以便能够在有限失真和损耗的情况下处理大量信号。支撑元件，GaN开关和变容二极管，将在小信号和大信号条件下建模。然后，它们将用于设计电路级解决方案，并将在现有和即将推出的PA架构中进行测试。

Recent advances in high frequency power amplifier design have shown that limitations of classical passive matching can be overcome by adopting controllable matching networks and active matching, often in conjunction. This project will study how controllable terminations can be designed to be able to handle significant signal magnitudes with limited distortion and losses. The underpinning components, GaN switches and varactors, will be modelled in small and large signal conditions. They will then be used to design circuit level solutions, and will be tested in existing and upcoming PA architectures.