| 摘要 |
PURPOSE: A dielectric resonator complex filter is provided to improve a harmonic suppression characteristic and prevent degradation of an isolation characteristic of a signal by adding a resonation circuit to an input/output portion. CONSTITUTION: A dielectric resonator complex filter has a case(21) of a predetermined shape. A multitude of barrier rib(25a,25b) is formed on an inside of the case(21). Four spaces are formed by the barrier ribs(25a,25b). A plurality of connector(22a,22b) is formed on end portions of both side of the case(21). An input/output portion is formed in the case(21) corresponding to the connector(22a,22b). A multitude of combination window(W1,W2,WC) is formed in the barrier ribs(25a,25b), respectively. A plurality of helical inductor(24a,24b) is formed at both ends of the case(21). A plurality of dielectric resonator(25a,25b) is formed in two central spaces of the four spaces, respectively.
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