| 摘要 |
PCT No. PCT/FI92/00159 Sec. 371 Date Nov. 16, 1993 Sec. 102(e) Date Nov. 16, 1993 PCT Filed May 22, 1992 PCT Pub. No. WO92/21157 PCT Pub. Date Nov. 26, 1992.The invention relates to a comb-line high-frequency filter or the like, comprising an elongated casing (1) of an electrically conductive material, conductor rods of an electrically conductive material being arranged in a sequence at predetermined intervals in a substantially integral air cavity within the casing, one end of each conductor rod being short-circuited to the casing and its other end being detached therefrom so that each conductor rod forms with the casing (1) an air-insulated coaxial resonator. In each coaxial resonator, the ratio between the diameters (X, Y) of the casing (1) and the resonator (3) is within the range from about 2.8 to 3.3.
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