"Efficient Modeling, Design and Optimization Methodologies for Advanced Microwave/Millimeter-Wave Passive Devices"

本研究的目标是促进计算机辅助设计（CAD）在高频系统中的知识和应用，并利用不同的技术开发先进和创新的微波和毫米波无源器件。重点将是滤波器、双工器和多工器的有效设计，重点是以下几个方面。(1)对于广泛应用于通信卫星的多路复用网络的设计，将开发高效、稳健和灵活的设计方法，使多路复用器的整体性能得到提高，而无需采用更昂贵的技术。(2)结合不同的技术，如神经网络和分布式电路模型，将被用来准确和快速地模拟滤波器/多路复用器在宽频率范围内的行为，以实现非理想效果的建模、优化和补偿，如色散和杂散模式干扰。(3)为寻找毫米波系统的低损耗、低成本和高集成度的解决方案，将探索集成无源器件（IPD）技术，以开发高质量的滤波器和双工器。与系统中其他设备的集成，如有源设备和片上天线，也将被研究。

The objectives of the proposed research are to advance the knowledge and applications of computer aided design (CAD) in high frequency systems, and to develop advanced and innovative microwave and millimeter-wave passive devices using different technologies. The emphasis will be the efficient design of filters, diplexers and multiplexers, focusing on the following areas. (1) For the design of multiplexing networks, which are widely used in communications satellites, highly efficient, robust and flexible design methodologies will be developed enabling overall multiplexer performance enhancement without resorting to more expensive technologies. (2) A combination of different techniques, such as neural networks and distributed circuit models, will be employed to accurately and quickly model filter/multiplexer behavior over a wide frequency range, to enable modeling, optimization and compensation of non-ideal effects, such as dispersion and spurious mode interference. (3) To find a low loss, low cost and highly integrated solution for millimeter-wave systems, Integrated Passive Devices (IPD) technology will be explored for the development of high quality filters and diplexers. Integration with other devices in the system, such as active devices and on-chip antenna, will also be investigated.