| 摘要 |
PROBLEM TO BE SOLVED: To improve connectability of a substrate to GND, 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: A conductive plate 58 made of a metallic mass is provided on the rear surface of a substrate 55, and the substrate 55 is mounted on this conductive plate 58 for heat radiation for a switch SW. When connectors J0-J3 are mounted on a case 54 by screws 86 and nuts 87, an L-shaped coupling member 81 is also attached, and this coupling member 81 is fixed on the conductive plate 58 via the substrate 55 by a screw 88. Accordingly, the conductive plate 58 and a GND pattern 75 of the substrate 55 are connected to the GND via a coaxial cable to be connected to the connector J0-J3. COPYRIGHT: (C)2006,JPO&NCIPI
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