| 摘要 |
<P>PROBLEM TO BE SOLVED: To operate a high-frequency electronic part connected to a high-frequency transmission line normally and stably for a long period by improving the transmission efficiency of a high-frequency signal at a high-frequency transmission line. <P>SOLUTION: A line conductor 2 formed from one side to opposed another side on the upper surface of an insulating board 1 of rectangular shape and coplanar ground conductors 3 respectively formed at an equal interval at both the sides of the line conductor 2 to both sides parallel to the line conductor 2, a lower ground conductor 5 formed on the entire surface of the lower surface of the insulating board 1, and a base 1a for the transmission line having side ground conductors 7 formed at both sides parallel to the line conductor 2 of the insulating board 1 for electrically connecting the coplanar ground conductors 3 and the lower ground conductor 5, are engaged with a groove 8a formed from one side of the upper surface of the metal member 8 of a rectangular parallelepiped shape to the opposed other side in such a manner that the upper surface of the base 1a for the transmission line is lower than the upper surface of the metal member 8. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
