| 摘要 |
PURPOSE:To reduce the transmission loss and to improve the transmission efficiency of a microstrip line by concentrating the current density distribution of the microstrip line at a high part of high conductivity. CONSTITUTION:An alumina ceramic substrate 1 contains a ground layer on one of both sides, and a strip line 6 is formed on the other side of the substrate 1 by laminating an electroless plating layer 5 on an Ag thick film conductor layer 4. In such a constitution of a microstrip line, the high dielectric constant members 7 are placed on the substrate 1 and at the positions adjacent to both sides of the line 6. |
