| 摘要 |
PURPOSE:To attain miniaturization and light weight and also no adjustment as a result, by providing a conductor or a dielectric projected for a prescirbed length from one end face of a through-hole, relating to a dielectric filter constituted with a dielectric block. CONSTITUTION:An engaging member 17 is provided, which comprises a shank section 15 respectively insertecd to the upper part of the through-holes 2-2'' costituting a resonator and a projection section 16 where the part projected to the upper surface of the dielectric block 1 has a diameter larger than that of the shank section 15 and the positioning is done by bringing the step into contact. The engaging member 17 is a pillar or ring shaped block piece made of a metal or a dielectric material, slits 18 are formed axially for the shank section 15, which is pressed into the through-holes 2-2'' and contacts a conductor film 3. The outside is reinforced as required with bonding by means of an adhesives. The height of the projection section 16 each is determined so as to have a desired resonance frequency and the projection section 16 is mounted to the respective holes 2-2''. Thus, the length of the resonator conductor 3 is changed substantially and a change is given also to a distance to the cover. |
