| 摘要 |
PROBLEM TO BE SOLVED: To provide the feed through structure of a distribution constant line which is difficult to generate mismatching. SOLUTION: One end of a first distribution constant line 3 formed on one main surface 2a of a substrate 2 and one end of a second distribution constant line 5 formed on the other main surface 2b of the substrate 2 are connected with each other through a first via hole 7. Then, a first connecting electrode 4 is formed adjacently to one end of the first line 3, a second connecting electrode 6 is formed adjacently to one end of the second line 5 and second via holes 11 and 12 connecting the first and second connecting electrodes 4 and 6 adjacently to the first via hole 7. Thus, mismatching of the whole transmission line including a feed through part can be reduced. |
