Design of millimetre wave components for additive manufacturing fabrication

Abstract

This project supposed the first experience in different fields like CAD design of waveguide (which implies connaisance of the specific software CST®), remembering concepts regarding filters and of course learning brand new concepts about resonators, cavities and so on. Besides that, theory about cross-coupling and transmission zeros is introduced, yet there is much room to learn about. In order to make this project feasible, it was divided in several tasks. This report is classified upon that too. In Chapter 2, regular and GGW waveguides will be presented as well as the strategic parameters to characterize the looked-for functioning. In Chapter 3 this knowing will be applied to design a GGW coupled resonator waveguide filter. In this case there are two important factor who will help to describe a filter: coupling factor and input coupling. So as to improve efficiency, two Python programs were designed to make this job better. In the final chapter, nature of overmoded cavities will be explained and a filter based on this will outline without losing the groove gap perspective.