| 摘要 |
PURPOSE:To obtain a device possible to be used as a shared apparatus suitably and with superior mechanical strength and resulting low cost, by constituting plural filter parts in a single dielectric block. CONSTITUTION:A dielectric filter device 30 is constituted in such a way that a first filter part 41 consisting of a resonator constituted at through holes 32 and 33 on both sides of a coupling hole 37 is provided, and a second filter part 42 consisting of the resonator constituted at through holes 34 and 35 on both sides of a coupling hole 38 is provided in a single dielectric block 31. Also, a filter coupling hole 43 is formed between filter parts 41 and 42, and in the filter coupling hole 43, a connection terminal 44 capacitive coupled with adjacent inner conductors 33a and 34a is inserted with pressure. And the filter parts 41 and 42 are coupled with each other to the connection terminal 44. Therefore, it is not necessary to increase the number of the dielectric blocks even when it is utilized as the shared apparatus in which a large number of filters are combined.
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