| 摘要 |
PROBLEM TO BE SOLVED: To improve reflection loss in branching a signal line conductor in a transmission line. SOLUTION: The transmission line is provided with a dielectric 11, a ground conductor 12 formed on the bottom surface of this dielectric 11, and a signal line conductor 13 formed on the top surface of the dielectric 11 so that one conductor is branched into two directions. The conductor 13 is branched into signal line conductors 13b, 13c after being branched, and these conductors 13b, 13c each have a bent portion so as to be guided into different directions. At least external end edges of the bent portion of both end edges in the widthwise directions of the branched conductors 13b, 13c are each formed into a curve. With this configuration, a current having high current density flowing along the end edge in the widthwise direction of the conductor before being branched can smoothly be guided to the conductor after being branched, and its discontinuity can be reduced. COPYRIGHT: (C)2005,JPO&NCIPI
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