发明名称 |
Image trap filter circuit |
摘要 |
A varactor diode tuner includes a tunable image frequency trap in its input circuit. The trap is part of a tunable bandpass filter and forms a tapped capacitance matching network for UHF television signal carrier frequencies and a low impedance shunt at image frequencies. The trap is formed of discrete capacitors, an inductor and a tunable varactor diode.
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申请公布号 |
US4835608(A) |
申请公布日期 |
1989.05.30 |
申请号 |
US19880200346 |
申请日期 |
1988.05.31 |
申请人 |
ZENITH ELECTRONICS CORPORATION |
发明人 |
LACHIW, MARK J.;STRAMMELLO, PETER |
分类号 |
H03J3/18 |
主分类号 |
H03J3/18 |
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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