Stub Loaded Semi-Circular Resonator for Filter Applications

摘要

This research article provides a detailed study of semi-circular resonator with stub loading for multiband filter applications. The layout of the design has a planar transmission line in which stubs are arranged in a semi-circular loop symmetrically and perpendicular to the transmission line. The proposed design ensures compactness with wide band configuration compared to the standard designs. The filters are designed and optimized in the frequency range of 2GHz to 7GHz using ANSYSS HFSS and the prototype is validated using Keysight Vector Network Analyzer E5080A.