| 摘要 |
PURPOSE:To obtain a small-sized, low-priced dielectric resonator which has high operation stability by providing a conductor at a position selected depending upon the plate thickness of an insulator near a dielectric resonator element, and setting its resonance frequency to a desired value. CONSTITUTION:An insulating plate 7 is made of an insulator having a low dielectric constant than a dielectric resonator element 1, and has a conductor layer formed on one surface by vapor deposition, plating, etc. The amount of electromagnetic energy leaking out of the element 1 is controlled by shifting the closely-provided conductor layer 8 in position, and thus the resonance frequency is set to a desired value, so the desired frequency is obtained while observed, thereby placing the insulating plate 7 which is adequately thick on the element 1. The insulating plate 7 thick enough to obtain the desired characteristics is selected and fitted on the element 1 with an adhesive, etc. |
