| 摘要 |
PROBLEM TO BE SOLVED: To provide a coaxial dielectric filter capable of adjusting a delay time between the input and output of the filter, a clock reproducing device for communication incorporating the filter and a data reproducing device. SOLUTION: This coaxial type dielectric filter provided with a cutoff waveguide 101, 1/2 wavelength coaxial type dielectric resonators 121 and 122 arranged in the cutoff waveguide, an input side antenna 132 whose forward end side approximates to the inside of the input side inner conductor of an input side coaxial type dielectric resonator and an output side antenna 142 whose forward end side approximates to the inside of the output side inner conductor of an output side coaxial type dielectric resonator, has an opening provided on the cutoff waveguide wall surface of a part corresponding to the connection space between the coaxial type dielectric resonators, and an outer conductor 110 which is provided at the opening, whose forward end part is inserted into the connection space and which also adjusts delay time between an input and an output in the coaxial type dielectric filter according to the amount of insertion quantity. |
