MONOLITHIC DIELECTRIC FILTER

摘要

PURPOSE: A dielectric filter is provided to increase the attenuation rate for a signaling off band and to make possible to control an attenuated position. CONSTITUTION: The filter comprises: (a)a dielectric block, (b)a plurality of resonance holes with a electrode in the inner space thereof, penetrating through the dielectric block, (c)a ground electrode formed in the outer space but the space formed the resonance hole, and (d)a input-output electrode formed by opening a part of the ground electrode with other electrodes.