发明名称 |
HIGH FREQUENCY TRANSFORMER |
摘要 |
A directional H.F. broadband transformer made by a printed circuit technique includes an insulating support carrying a two-hole ferrite core. A planar coil arrangement includes two web spirals wound around outer legs of the core and each being coupled to an elongated web arranged in the same plane and passing through a corresponding hole of the core. The two elongated webs are formed with an input terminal, an output terminal and a tap terminal of equal impedance. An isolated conductive layer mounted above the webs on the insulating support is capacitively coupled with the coil arrangement and with a ground layer to reduce values of series connected distributed capacitors resulting between respective webs and the ground layer. |
申请公布号 |
DE3565439(D1) |
申请公布日期 |
1988.11.10 |
申请号 |
DE19853565439 |
申请日期 |
1985.06.11 |
申请人 |
ROBERT BOSCH GMBH |
发明人 |
PFIZENMAIER, HEINZ;SCHMIDT, EWALD |
分类号 |
H01F27/00;H01F17/00;H01F17/04;H01F19/04;H01F19/06;H01G4/40;H03H7/09;H05K1/02;H05K1/16;(IPC1-7):H01F17/00 |
主分类号 |
H01F27/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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