发明名称 |
Input-output balanced filter |
摘要 |
An input-output balanced filter has a greatly reduced size and excellent stable electric characteristics. The input-output balanced filter includes two LC bandpass filter circuit units. A first LC bandpass filter circuit unit has a circuit structure in which a first LC parallel resonant circuit including an inductor and a capacitor is connected to a second LC parallel resonant circuit including an inductor and a capacitor via a connecting capacitor, while the second LC bandpass filter circuit unit has a circuit structure in which a third LC parallel resonant circuit including an inductor and a capacitor is connected to a fourth LC parallel resonant circuit including an inductor and a capacitor via the other connecting capacitor; and, the common side lines of the two LC bandpass filter circuit units are connected to each other via a connecting inductor which functions as a common line.
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申请公布号 |
US7079644(B1) |
申请公布日期 |
2006.07.18 |
申请号 |
US19990228562 |
申请日期 |
1999.01.12 |
申请人 |
MURATA MANUFACTURING CO., LTD. |
发明人 |
TANIGUCHI TETSUO;MIZOGUCHI NAOKI |
分类号 |
H01F27/00;H04M1/00;H01F17/00;H01G4/40;H03H7/01;H03H7/075;H03H7/42 |
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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