| 摘要 |
PROBLEM TO BE SOLVED: To provide a dielectric duplexer low in height, whose the characteristic is satisfactory and whose the work is easy and to provide communication machine equipment using the duplexer. SOLUTION: Resonator holes 22a-22d on a transmission filter-side, resonator holes 23a-23d on a reception filter-side, a resonator hole for input/output connection 24 and a ground hole 25 are formed in a dielectric block 21 in a line. An outer conductor 36 is removed in a C-form so that it surrounds respectively the resonator holes 22c, 22d and 24 and the ground hole 25 in an inner part 41 on the first end face 26 of the dielectric block 21, and a conductor non- forming part 43 is formed. A conductor pattern 44, which is left near the center of the conductor non-forming part 43 electrically connects the inner part 41 and an outer part 42, which are separated by the conductor non-forming part 43 and function as a micro inductance.
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