| 摘要 |
PURPOSE:To provide the strip line excellent in reflection-characteristic and simple in structure, having a section converting the microstrip and triplet lines with a wide degree of freedom of the characteristic impedance of microstrip lines and triplet lines. CONSTITUTION:A triplet line inner conductor 1 and a microstrip line upper conductor 4 are processed on a piece of dielectric substrate 5. Further, by bending the substrate 5 at the section converting the triplet and microstrip lines, the line conversion can be performed without reducing the degree of freedom of the characteristic impedance selection of both lines. Further, the earth conductor of each line at the conversion section is short-circuited, and the impedance matching can be made easy by providing trapezoidal and rectangular conductors at the junction section of a triplet line inner conductor 3 and a microstrip line inner conductor 3. A turning down film substrate may be used as a dielectric substrate 5. |
