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

该项目旨在探索新的设计方法和实现技术，用于下一代5G/6 G通信中的空间和地面应用的高性能毫米波和太赫兹波导器件。微波滤波器设计已成为一门成熟的技术。然而，随着频率进入毫米波和太赫兹范围，滤波器设计面临着一系列全新的挑战，从改善插入损耗，到降低尺寸敏感性，从而提高制造成品率。这不仅对微波设计人员提出了挑战，而且对制造技术也提出了挑战。为了满足未来空间和卫星通信对5G、6 G及以后的需求，其中将具有毫米波和太赫兹区域，需要一种通用和新颖的设计方法，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组件。目标是实现具有高空载品质因数、低插入损耗、高选择性、低灵敏度、低几何复杂性、高功率处理能力和高制造公差的滤波器。首先，一个新的和一般的方法来合成线内椭圆函数滤波器使用模块化的方法的基础上，新颖的谐振器部分。然后，将提出具有新拓扑结构和谐振器结构的新颖解决方案，并进行实验验证，以在建模和实施步骤中证明低损耗和对制造公差的不敏感性。最后，基于该方法和策略，将通过设计制造（DFM）方法，使用先进的3D打印和微加工技术完成波导组件的制造和演示。

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.