Dielectric filter and method of adjusting central frequency of the same

摘要

A dielectric filter comprises transmission paths each of which is coupled to an associated input/output conductor provided in a dielectric ceramic block, and may be operated as capacitance means or inductance means, in which an intended center frequency can be obtained by suitably setting the lengths of the transmission paths without changing the length of each resonance conductor. A method of adjusting the center frequency of a dielectric filter in which the center frequency of the dielectric filter is adjusted to a desired value by changing the length of each transmission path located on the top surface having a relatively wide area of the dielectric ceramic block, which may behave as capacitance means or inductance means, and the adjusting operation becomes easy and production costs can be reduced. <IMAGE>