High frequency coil |
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| 申请号 | JP18487582 | 申请日 | 1982-10-20 | 公开(公告)号 | JPS5974610A | 公开(公告)日 | 1984-04-27 |
| 申请人 | Matsushita Electric Ind Co Ltd; | 发明人 | SERIZAWA MASABUMI; HAYASHI TSUNEO; | ||||
| 摘要 | PURPOSE:To obtain a high frequency coil which has a prescribed turns ratio by a method wherein a coil is stood on a ceramic circuit board composed of conductor layers and insulation layers laminated alternately and around the circumference of the coil on each conductor layer a conductor ring which has a partial break is provided coaxially with the coil and these rings are connected in series. CONSTITUTION:A multi-layer circuit board 1 in which a circuit has been already composed is composed of conductor layers 3 and insulation layers 4 laminated alternately on a ceramic board 2. Lands 9 are provided on the surface of the board 1 corresponding to the fitting of components and connection of wires and they are introduced to the wiring inside. A coil 5 is stood on the board 1 and the coil 5 is composed of only one winding which is used for tuning inductance or the like and wound on a coil bobbin 5a and it has a high Q and is relatively cheap. A conductor ring 6 is formed on the conductor layer 3 around the circumference of the coil 5 concentrically with the coil 5 and it has a shape of a ring with a partial break. The both ends of the break of the conductor ring 6 are lead out to the surface of the board 1 and terminal lands 7 are provided. Required number of layers of the conductor rings 6 are connected in series by connection pins 8 which connect between the lands 7 so that a high frequency coil with a prescribed turns ratio of the windings is obtained. | ||||||
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| 说明书全文 | |||||||
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