| 摘要 |
PURPOSE:To miniaturize a filter by arranging plural resonance rods in a conductive case at a prescribed interval and clipping a plate dielectric between the upper/lower part of the resonance array and the case. CONSTITUTION:The flat dielectric bodies 5, 6 are clipped respectively between the upper/lower part of the array of the resonance rod 2 and the case 1. Moreover, electrodes 5a, 6a are formed respectively to a face of the case 1 of the dielectric bodies 5, 6 and they are connected electrically to the case 1. Thus, the length of each resonance rod 2 is decreased by the operation of the dielectric bodies 5, 6 is attained, that is, the filter is miniaturized and number of components is decreased, the assembly is simplified and the productivity is improved.
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