BAND-PASS FILTER USING MICROSTRIP DIELECTRIC RESONATOR

摘要

PURPOSE: A band-pass filter using a microstrip dielectric resonator is provided to magnetically adjust usage frequency band while adjusting the intensity of DC magnetic field induced in a ferrite rod. CONSTITUTION: Input microstrip transmission lines(12) and output microstrip transmission lines(12) are formed with constant intervals on a substrate(11). A plurality of dielectric resonators(14) are mounted between the input/output microstrip transmission lines(12,13). A plurality of units(20) for magnetically adjusting usage frequency band are respectively installed to the plurality of dielectric resonators(14). That is, a predetermined DC magnetic field is induced using electromagnets(22) on both ends of a ferrite rod(21), whereby the usage frequency band can be magnetically adjusted.