| 摘要 |
PROBLEM TO BE SOLVED: To use a common substrate for various frequency bands to be applied and manufacture a device by the minimum switch configuration, 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 such as a terrestrial digital television broadcast or a cellular phone, 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: As stab patterns to be used/unused according to opening/closing of branching switches SW1-SW3, two kinds of stab patterns such as ST11, ST12 and ST21, ST22 are provided for a single transmission path K0, ST11, ST12 are used, for example, bands of a long wave side, and ST21, ST22 are used, for example, for bands of a short wave side. The switches SW11, SW12 are mounted on the side to be used. COPYRIGHT: (C)2006,JPO&NCIPI |
