| 摘要 |
PURPOSE:To attain miniaturization by fitting a side face formed with a conductive film of a dielectric resonator to a partition plate via a through hole and mounting the dielectric resonator to a frame and the partition plate. CONSTITUTION:The conductive film is formed to the bottom face and at least a side face of the dielectric resonator 10 and a frame 11 of dielectric filters 13a, 13b is arranged while each side wall 11d is opposite to each other respectively. Then a metal-made partition plate 14 is clipped between the side walls 11d and a through hole 12 through which the side face of the dielectric resonator 10 is fitted to the side walls 11d of the frame 11 clipping the partition plate 14 is fitted is provided. Moreover, the side face with the conductive film of the dielectric resonator 10 formed thereupon is fitted to the partition plate 14 through the through hole 12 and the dielectric resonator 10 is fitted to the frame 11 and the partition plate 14 to form the branching filter. Thus, the width is made small, the assembling is simplified, the production cost is reduced and a solid filter independently of the operating condition change is attained.
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