| 摘要 |
PROBLEM TO BE SOLVED: To simplify work for production and to attain reduction in production cost and the reduction in production fluctuation by providing a triplate cable equipped with outer conductors mutually electrically connected proximately to the upper and lower sides of a central conductor. SOLUTION: An outer conductor line 21a for phase deviation correction extending a cable outer conductor 21 and a central conductor 22 are respectively connected and fixed to output signal lines 6 and 6a in electrically conductive states. Signals, supplied from an input signal line 5, are distributed equally to the output signal lines 6 and 6a, while a distribution phase is converted at 180 deg.. At that time, at the position of phase deviation occurrence just for the length of an exposed central conductor 22a connected to the output signal line 6a, the outer conductor line 21a for phase deviation correction is connected to the output line 6, while being controlled into length equivalent to the line 22a of the exposed central conductor 22. Thus, an ideal balun circuit and the equally distributed output signals with the phase difference of 180 deg. can be provided. |
