DIELECTRIC RESONATOR DEVICE AND ITS MANUFACTURING METHOD

摘要

It is an object to provide a dielectric resonator device configured to easily satisfy restriction conditions of a resonance frequency, an external shape size and other frequency characteristics, and its manufacturing method. A dielectric resonator device (1) is provided with a dielectric block (2), an internal conductor (4) and an electrode non-forming region (5A) on a step surface. The dielectric block (2) is pierced at its internal portion by an internal conductor forming hole (3) and is provided on its external surface with an external conductor (6). The internal conductor (4) is arranged at an internal surface of the internal conductor forming hole (3). The internal conductor forming hole (3) is provided with a step surface where an internal surface is discontinuous between the both ends. The internal conductor (4) includes a step surface conductive portion (4C) arranged at the step surface. The step surface conductive portion (4C) is exposed to the external surface of the dielectric block (2) through one edge of the internal conductor forming hole (3). The electrode non-forming region (5A) and the step surface conductive portion (4C) are arranged on the step surface of the internal conductor forming hole (3).