发明名称 |
Varactor Tuning For A Narrow Band Filter |
摘要 |
An apparatus for providing dynamic and remote tuning of a cryo-cooled bandpass filter is disclosed. The device includes resonator element and a voltage sensitive element as part of the capacitance in a narrow band filter circuit. A varactor such as a GaAs varactor may be used. Alternatively, a capacitor having a voltage-sensitive dielectric such as SrTiO3 may be used. A computer may be connected to the varactor to provide for automated tuning. The voltage-sensitive capacitor may be integral with the resonator element. The invention provides for remote and dynamic tuning of a narrow bandpass filter while located within its sealed cryo-cooled environment.
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申请公布号 |
US2009079515(A1) |
申请公布日期 |
2009.03.26 |
申请号 |
US20080970695 |
申请日期 |
2008.01.08 |
申请人 |
CONDUCTUS INC. |
发明人 |
SHIH CHIEN-FU;ZHANG YONGMING;MOECKLY BRIAN H. |
分类号 |
H03H7/12;H03J1/00;H03J5/02 |
主分类号 |
H03H7/12 |
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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