发明名称 |
High-frequency filter, complex electronic component using the same, and portable radio apparatus using the same |
摘要 |
A high-frequency filter 10 serving as a bandpass filter has three transmission lines SL11 to SL13 side-coupled in three stages. The transmission lines SL11 to SL13 are respectively connected in parallel to capacitors C11 to C13. One end of the input transmission line SL11 is connected to an input terminal Pi through an input capacitor C14. One end of the output transmission line SL13 is connected to an output terminal Po through an output capacitor C15. The other ends of the transmission lines SL11 and SL13 are connected and the connection point is connected to the ground through an inductor Lg for forming a pole. One end of the transmission line SL12 is connected to the ground.
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申请公布号 |
US6429753(B1) |
申请公布日期 |
2002.08.06 |
申请号 |
US20000488975 |
申请日期 |
2000.01.20 |
申请人 |
MURATA MANUFACTURING CO., LTD. |
发明人 |
TSURU TERUHISA;BANDO TOMOYA;TONEGAWA KEN;MANDAI HARUFUMI;SHIMADA NORIHIRO |
分类号 |
H01P1/203;(IPC1-7):H01P1/213;H01P1/201 |
主分类号 |
H01P1/203 |
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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