HIGH SELECTIVITY SINGLE WIDEBAND AND QUAD-BAND HTS FILTERS USING NOVEL QUAD-MODE RESONATORS WITH SELF-COUPLED STRUCTURE

High Selectivity Single Wideband and Quad-Band HTS Filters Using Novel Quad-Mode Resonators With Self-Coupled Structure

This paper presents improved quad-mode resonators based on the open/short-end load of the center stub, which introduces the self-coupled structure.Compared with the traditional stub-loaded stepped impedance resonator (SLSIR), the proposed quad-mode resonators can significantly reduce the circuit size and further increase the design freedom.First of

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