Design of a Waveguide Bandpass Filter for Satellite Applications

Abstract

The design of microwave filters is a critical issue in the modernistic sphere of microwave engineering, especially waveguide technology. It has known an up growth in the last few decades for its significant addition in many distinct microwave applications, especially in the implementation phase of RF and microwave filters, despite the fact that this technology is not suitable for operations at low frequencies due to its expanded dimensions, that it is not fitting by reason of size, cost, and flexibility. In this chapter, the authors present a brief state of the art about RF and microwave filters, considering the types, the characteristics of these devices, and the presentation of results of two conceptions and simulations results of a bandpass filter dedicated for a satellite application and a waveguide with resonators and tuning screws for a mobile communication application to show and present the effect of tuning screws on the response of a microwave filter.