Amplifier using dc superconduction quantum interference device |
|||||||
| 申请号 | JP10493884 | 申请日 | 1984-05-22 | 公开(公告)号 | JPS60247311A | 公开(公告)日 | 1985-12-07 |
| 申请人 | Mitsubishi Electric Corp; | 发明人 | NOGUCHI TAKU; | ||||
| 摘要 | PURPOSE:To improve greatly the amplification capacity of an AC signal with no reduction of an action frequency by inserting an impedance transformation circuit between an inpt coil of a DC superconduction quantum interference device (dc SQUID) and a signal source or between an output terminal of the dc SQUID and a load resistance. CONSTITUTION:A transformation circuit 7 is used for matching of impedance between a signal source 1 and an input coil 3; while an impedance transformation circuit 8 is added for matching between the output resistance of a dc SQUID4 and a load 5. The power reflection of the circuit 7 can be eliminated by securing a proper constitution of the circuit 7, and it is possible to transmit all available powers to an amplifier circuit 30. The impedance matching is secured between the source 1 and the SQUID4 to improve the power gain. In addition, the impedance matching is secured also between an output load and the dc SQUID4 at the output side. Thus the maximum available power is obtained. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
QQ群二维码
意见反馈
意见反馈