New Design and Manufacture Technologies for High-Performance Millimetre-Wave and Terahertz Waveguide Devices for Space and Terrestrial Communications

该项目旨在探索下一代5G/6G通信中用于空间和地面应用的高性能毫米波和太赫兹波导器件的新设计方法和实现技术。微波滤波器的设计已经成为一门既定的艺术。然而，随着频率越来越高，进入毫米波和太赫兹频段，滤波器设计面临着一系列全新的挑战，从改善插入损耗到降低尺寸灵敏度，从而提高制造良率。这不仅是对微波设计人员的挑战，也是对微波制造技术的挑战。为了满足未来以毫米波和太赫兹为特征的5G、6G及以上空间和卫星通信的需求，需要通过探索新的先进加工技术来合成和制造波导滤波器和滤波元件的通用和新颖的设计方法。目标是实现具有高卸载质量因子、低插入损耗、高选择性、低灵敏度、低几何复杂度、高功率处理能力和高制造公差的滤波器。首先，将提出一种新的通用方法，利用基于新型谐振器截面的模块化方法合成内联椭圆函数滤波器。然后，将提出具有新拓扑和谐振腔结构的新颖解决方案并进行实验验证，以在建模和实现步骤中展示低损耗和脱敏以制造公差。最后，基于方法和策略，波导组件的制造和演示将使用先进的3d打印和微加工技术，通过设计制造（DFM）方法完成。

This project aims to explore novel design methodologies and implementation techniques for high-performance mm-wave and terahertz waveguide devices for space and terrestrial applications in the next generation 5G/6G communications. Microwave filter design has become an establish art. However, as frequency goes higher into millimetre-wave and terahertz regime, filter design faces a whole new set of challenges from improving the insertion loss, to reducing the dimensional sensitivity and therefore increasing the manufacture yield. This not only challenges microwave designer but also the manufacture techniques. To meet the demands of future space and satellite communications for 5G, 6G and beyond, which will feature millimeter-wave and terahertz regions, there is a need for a general and novel design methodology to synthesize and manufacture the waveguide filters and filtering components by exploring new and advanced machining techniques. The goal is to achieve filters with high unloaded quality factor, low insertion loss, high selectivity, low sensitivity, low geometrical complexity, high power handling capacity, and high fabrication tolerance. First, a newand general methodology for synthesizing inline elliptic-function filters using a modular approach based on novel resonator sections will be presented. Then, Novel solutions with new topologies and resonator structures will be proposed and experimentally verified to demonstrate low-loss and desensitization to manufacture tolerance in the modeling and implementation step. Finally, based on the methodology and strategy, fabrication and demonstration of the waveguide components using advanced 3-D printing and micromachining techniques will be completed, by a Design-for-Manufacture (DFM) approach.