| 摘要 |
PROBLEM TO BE SOLVED: To provide a branching filter that can absorb dispersion resulting from the tolerance caused at the manufacturing of the branching filter without affecting its attenuation characteristic and its isolation characteristic even when an insertion length of an adjustment machine screw for the adjustment of band pass filters being components of the branching filter and the electric length between an E-plane T branch section and each band pass filter is deviat ed from an object value. SOLUTION: In the branching filter, a transmission terminal and a reception terminal are connected to the band pass filters via an H-plane T branch section and outputs of the band pass filters are composited at the E-plane T branch section, then the composite output is given to an antenna terminal. The filter is configured by incorporating a bend atop filter 7 between the E-plane T branch section 6 and the antenna terminal.
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