发明名称 |
Variable-frequency band-elimination filter |
摘要 |
A series resonance circuit defined by a series circuit including an inductor and a capacitor and a series resonance circuit defined by a series circuit including an inductor and a capacitor are connected in shunt to a signal line. A diode is disposed between the grounding end of the series resonance circuit and the ground, and a diode is disposed between the grounding end of the series resonance circuit and the ground. The connection point between the grounding end of the series resonance circuit and the diode is connected to the ground via a frequency shifting inductor in a conductive state at high frequency, and the connection point between the grounding end of the series resonance circuit and the diode is connected to the ground via a frequency shifting inductor in a conductive state at high frequency. A matching circuit defined by a multistage T-shape LCL circuit is disposed between the series resonance circuits.
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申请公布号 |
US7911294(B2) |
申请公布日期 |
2011.03.22 |
申请号 |
US20090542734 |
申请日期 |
2009.08.18 |
申请人 |
MURATA MANUFACTURING CO., LTD. |
发明人 |
HARADA TETSURO;TONEGAWA KEN |
分类号 |
H03H7/01 |
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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