| 摘要 |
PURPOSE:To improve a non-defective article ratio and to reduce a manufacture cost by assembling plural dielectric resonators or other elements together with the dielectric resonators and roughly constituting the dielectric filter, then tuning the dielectric resonators or other elements assembled together with them. CONSTITUTION:When a band-pass filter, etc., is constituted by using the dielectric resonators, dielectric resonators which do not meet plural kind of standardized characteristics are turned in a process P3. In a process P5, specific dielectric resonators are used and incorporated in a case together with other elements such as coils and capacitors. Then the filter characteristics of the dielectric filter are measured and it is decided whether or not the characteristics are within a predetermined standard range. In a process P8, it is decided whether or not the filter characteristics have deviation which can be put within the standard range by tuning unless the characteristics of the dielectric filter are within the standard range. When the tuning is available, the dielectric filter is tuned in a process P9. |
