| 摘要 |
PROBLEM TO BE SOLVED: To match the impedance with change in the number of branches caused by separating a fault amplifier or with various frequencies, in a high-frequency power compositor or distributor called as a power switchable combiner/divider which is preferably embodied to a radio relay device of a high-frequency signal of a terrestrial digital television broadcast, connects one end of a single transmission path to one end of a branch transmission path, and is provided with a switch for opening/closing the high-frequency signal on each branch transmission path. SOLUTION: A stab pattern ST1 used in two branch and a stab pattern ST2 used in three branch are provided, both stab patterns being opened/closed by switches SW11 and SW12 for stab respectively, interlocking with opening/closing of switches SW1-SW3 for branch. Each of the stab patterns ST1 and ST2 is formed by portions a-e corresponding to five bands of the terrestrial digital television broadcast, and a necessary length of each of the patterns is used by a solder bridge or soldering with a bridged metallic plate. COPYRIGHT: (C)2006,JPO&NCIPI
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