Dielectric resonator, dielectric filter, dielectric duplexer, and oscillator

摘要

A dielectric resonator allowing size reduction and easy modulation of coupling between adjacent resonating sections and electrodes is provided. A configuration is such that electric conductors 2a and 2b having openings on two main faces of a dielectric substrate 2 are arranged so as to oppose each other. Electrodes 5 and 6 are respectively formed on one main face each of supporting members 3a and 3b, the supporting members 3a and 3b are arranged via spacers 9 so as to oppose each other and so as to be apart from each other with a predetermined spacing in the thickness direction of the dielectric substrate 2 for the dielectric substrate 2, first and second conductor plates 4a and 4b are arranged apart with a predetermined spacing from the supporting members 3a and 3b, and the dielectric substrate positioning between the openings opposing each other is used as a resonating section.