发明名称 |
TUNABLE INTERSTAGE FILTER |
摘要 |
In a tuner, a tunable bandpass filter which has a combined high side coupling portion having an increasing coefficient of coupling with increasing frequency and a low side coupling portion having a decreasing coefficient of coupling with increasing frequency. The two coefficients of coupling vary inversely with frequency with respect to each other as the bandpass filter is tuned through the frequency band. |
申请公布号 |
WO9634453(A1) |
申请公布日期 |
1996.10.31 |
申请号 |
WO1996IB00381 |
申请日期 |
1996.04.26 |
申请人 |
RCA THOMSON LICENSING CORPORATION;ASCHWANDEN, FELIX |
发明人 |
ASCHWANDEN, FELIX |
分类号 |
H03H7/01;H03G3/20;H03G3/30;H03H7/09;H03H7/12;H04B1/16;H04N5/44;H04N5/52 |
主分类号 |
H03H7/01 |
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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