Synthesis and Modelling Techniques for Microwave Filters and Diplexers: Advances in Analytical Methods with Applications to Design and Tuning
Résumé
In the era of widespread telecommunication systems, with the consequent crowding of the frequency spectrum, microwave filters and multiplexers play a key role in the development of most communication devices. Their design and tuning can rely on some well-established techniques, but miniaturization, wide frequency ranges and the other challenges of modern engineering relentlessly push these to their limits; the present book is meant to provide theoretical advances and insights addressing some of the common issues in this field. Filters design is here examined in a way alternative to classical approaches, in an effort to extend applicability cases and allow for a synthesis outcome closer to the real-world behavior. Diagnosis and tuning are moreover typical bottlenecks in the development of diplexers; the problem is here studied to introduce techniques aimed at obtaining models of the device under test for a quicker identification of faults and mismatched elements. Basic definitions, derivation of equations and easy-to-use algorithms are among the covered topics, alongside useful circuital transformations and computational tools for application by microwave engineers and researchers.