Contributions to the analysis and design of all-inductive filters with dielectric resonators

In this work, three modern full-wave methods will be employed for the accurate analysis and efficient design of a novel family of all-inductive filters loaded with dielectric resonators. These techniques are the bi-orthonormal-basis combined with the orthonormal-basis method, the hybrid mode-matching/spectral method, and, finally, the BI-RME (Boundary Integral-Resonant Mode Expansion) method. Then, two prototypes of band-pass filters have been designed in this work using a CAD tool developed in the research groups implicated in this manuscript. The procedure described in this paper only involves a limited number of actual physical parameters at each step so that it is computationally very efficient and rapidly convergent. Improving the performance of the standard all-inductive filters (without dielectric resonators), the novel topologies present a reduction of the volume and a larger band free of spurious, maintaining the low-cost high-precision manufacturing properties.