| 摘要 |
PROBLEM TO BE SOLVED: To provide a dielectric electronic component that is used as a dielectric duplexer and a dielectric filter capable of adjusting the resonance frequency of the spurious waves, less changing electrical performance near a passband and of improving the attenuation amount of a prescribed band near a spurious wave peak and to provide a method for adjusting the resonance frequency of the spurious wave. SOLUTION: In this dielectric electronic component. one end surface of a dielectric ceramic block comprises a resonator open end where the open end of a resonator is formed and an excitation hole short-circuiting end step part which is lower by a prescribed step than the resonator open end surface and is covered with a conductor and where a short-circuiting end of the excitation hole is formed. This method for adjusting the resonance frequency of the spurious wave of this dielectric electronic component comprises a step for adjusting the resonance frequency of the spurious wave by changing the depth of the excitation hole short-circuiting end step part, wherein the one end surface of the dielectric ceramic block comprises the resonator open end where the open end of a resonator is formed and the excitation hole short-circuiting end step part which is lower by a prescribed step than the resonator open end surface and is covered with the conductor and where the short-circuiting end of the excitation hole is formed. COPYRIGHT: (C)2004,JPO&NCIPI
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