DIELECTRIC RESONATOR, DIELECTRIC FILTER USING THE RESONATOR, AND PRODUCTION METHOD OF THE DIELECTRIC FILTER

摘要

A compact and high-performance dielectric resonator including a molded body (1) made of a dielectric material, a through hole (2), first and second earth electrodes (3a and 3b), and an inner conductor (4). The molded body (1) has an open end (5) and a terminated end (6) provided with the second earth electrode (3b). The through hole (2) has a larger diameter (15) at the open end (5), and an island-like electrode (8) is disposed on the side surface of the body (1) toward the open end. <IMAGE>