| 摘要 |
PROBLEM TO BE SOLVED: To provide a T-branch line substrate which can highly be integrated without making a part constituting a T-branch line part large and suppresses an influence of an unnecessary radio wave on other transmission lines etc., and eliminates unnecessary mode resonance. SOLUTION: The wiring board has a 2nd through connection conductor 8b arranged on a prolongation of a 1st transmission conductor 5, and is characterized in that the distance between the 2nd through connection conductor 8b arranged on the prolongation of the 1st transmission conductor 5 and a 2nd transmission conductor 6 is made shorter than the distance between another 2nd through connection conductor 8 and the 2nd transmission conductor 6, the distance between a 1st through connection conductor 7a disposed most closely to the 2nd transmission conductor 6 among 1st through connection conductors 7 and the 2nd transmission conductor 6 is made longer than the distance between the 2nd through connection conductor 8 and 2nd transmission conductor 6, and the distance between the 2nd through connection conductor 8a disposed most closely to the 1st transmission conductor 5 among 2nd through connection conductors 8 and the 1st transmission conductor 5 is made longer than the distance between the 1st through connection conductor 7 and 1st transmission conductor 5. COPYRIGHT: (C)2007,JPO&INPIT
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