| 摘要 |
PROBLEM TO BE SOLVED: To provide a connection structure for a transmission line with a small mismatching between the transmission line and a wire. SOLUTION: In the connection structure between a microstrip line 41 where a main line 42 is formed on one major side of a base 8 and a ground electrode 5 is formed to the other major side and a microstrip line 43 where a main line 44 is formed on one major side of a base 7 and a ground electrode 9 is formed to the other major side, the ends of the main lines 42, 44 are connected by a wire 10 and the width of the main lines 42, 44 is formed gradually wider in the vicinity of the ends of the main lines 42, 44 over a length equal to or greater than 3/10 of an effective wavelength from the ends. Thus, mismatching between the microstrip line and the connection part of the wire can be reduced. |
