The dielectric resonator, the dielectric filter, having the electrode which possesses dielectric

摘要

PROBLEM TO BE SOLVED: To achieve standardization of the external size without increasing the external size even in constituting a dielectric resonator device in which a difference resonance frequency of can be used.;SOLUTION: An electrode 2 with openings 4a, 4b, 4c is formed on an upper side of a dielectric plate 1 and an electrode with openings opposing the openings 4a, 4b, 4c is formed on the lower side. Accordingly, the dielectric resonator device 10 is configured to function as a three-stage resonator. Strip lines 22, 23 serving as input/output probes are provided on the upper side of an input/ output substrate. Also, a ground electrode 24 having electrode openings 21a, 21b, 21c is formed thereon. By providing the dielectric resonance device 10 and upper substrate 40 on the upper side of the input/output substrate 40, a dielectric filter is formed.;COPYRIGHT: (C)2004,JPO