| 摘要 |
PURPOSE:To increase the working efficiency as well as obtain the steady characteristics, by connecting the strip streak bar on the surface of the substrate to the wiring pattern on the back of the substrate by making use of the strip streak bar itself. CONSTITUTION:The strip line consists of the foil-type copper plate streak bar 12 distributed on the surface of the insulated substrate 11 with some space secured and the conductive land 13 formed on the back of the substrate 11. The bar 12 is formed with the main conductor part 14 distant way from the substrate by a preseribed distance h1 and the attachment part 15 which is bent vertically at both ends. And the part 15 has the foot bar protruded toward the land 13 of the back of the substrate 11 and to be fixed electrically and mechanically. On the other hand, land 13 forms the print wiring circuit for a number of component parts of a tuner circuit. Accordingly, the bar 12 is connected to the land 13 mechanically and electrically to be used as the primary component part of the strip line, satisfying the self-conductor conditions. |
