PURPOSE: To miniaturize an entire dielectric filter in comparison in the case of changing a pitch between inner conductor forming holes, to fix the pitch between the inner conductor forming holes, and to make parts common.
CONSTITUTION: An outer conductor 4 is formed on the outer surface of a dielectric, plural inner conductor forming holes 5 and 6 and a non-forming part 8 of an inner conductor is provided in the vicinity of the opening faces of the inner conductor forming holes 5 and 6 so as to enable comb-line coupling. Then, the degree of coupling resonators is decided corresponding to a distance between the central axes of the inner conductor forming holes 5 and 6 and the outer surface of the dielectric without changing the pitch between the inner conductor forming holes 5 and 6.
KATO HIDEYUKI
KITAICHI YUKIHIRO
YORITA TADAHIRO
MORI HISASHI
