基于人工智能技术的毫米波功率放大器智能设计关键技术研究

毫米波功率放大器作为毫米波通信系统内功耗最大、最复杂的部件，其设计的效率及质量直接影响系统的性能。基于工程师经验及现有EDA工具的功放设计技术效率低、门槛高，已无法满足用户对硬件设计高效、高质的需求。而基于人工智能技术的电路设计方法因其高效性而备受关注。目前对功放的智能化设计技术研究处于起步阶段，因此研究毫米波功放智能设计技术具有重要的理论意义与实用价值。.本项目将专注于研究毫米波功放最优匹配阻抗点的智能选取技术，初版功放的智能设计技术，以及功放全局智能优化技术，满足功放高效、智能化设计需求；研究功放晶体管的智能实时建模技术，提供迅速、精确、智能的建模方案, 为功放智能设计提供基础；研究级联功放在失配条件下，受宽带调制信号激励时的行为特性，建立功放的整体性能与失配条件之间的关系，提高功放失配时的性能，优化级联功放的设计方法。最终将完成毫米波段高效、宽带、线性化功放的智能设计。

Millimetre-wave power amplifiers (MWPAs) are the most power-consuming and complex components in modern high frequency communication systems. The quality of their design directly affects the efficiency and performance of a given system. The existing power amplifier (PA) design methodology relies heavily on the experience of the designers, in addition to Electronic Design Automation (EDA) tools. This not ideal, as designers with specialised expertise are required. Modern industry demands simple, rapid and accurate design procedures. One potential solution lies in the use of artificial intelligence for circuit design, which has recently gained considerable attention from the millimetre wave community. However, very few studies have explored the application of such techniques to the design of MWPAs. Therefore, it is of great theoretical and practical value to conduct a scientific study in this field..This project will focus on the application of intelligent design concepts to MWPAs. This is to include a focus on methods enabling intelligent selection of the optimal matching impedance of the PA, procedures to ensure first-pass PA design success, as well as a consideration of global optimization techniques to ensure overall optimum performance. The objective is to develop a simplified, accurate design methodology that yields an optimal, efficient design, in a short timeframe. A real-time, intelligent modelling tool, based on millimeter-wave power transistor behavioural models, is to be developed. A nonlinear, behavioural model, suitable for impedance mismatched PAs, excited by extremely wideband modulated signals, is be established. This model will describe the relationship between the overall gain, efficiency and output power of the PA, and facilitate the optimization of the overall performance of several such PAs, under cascaded conditions. Finally, a prototype of the millimetre wave, high-efficiency, wideband PA, with high linearity, will be built, based on the proposed intelligent design technique.