发明名称 |
Duplexer with an impedance matching circuit and an electronic device using the same |
摘要 |
A duplexer includes a multilayer package, SAW filters that have different band center frequencies and are provided in the multilayer package, and a phase matching line that matches phases of the SAW filters and are provided in the multilayer package. A ground pattern with respect to the phase matching line is provided on a mount surface of the multilayer package.
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申请公布号 |
US6919778(B2) |
申请公布日期 |
2005.07.19 |
申请号 |
US20020295910 |
申请日期 |
2002.11.18 |
申请人 |
FUJITSU MEDIA DEVICES LIMITED |
发明人 |
IWAMOTO YASUHIDE;IKATA OSAMU |
分类号 |
H01L23/12;H01P1/213;H03H9/10;H03H9/25;H03H9/64;H03H9/72;(IPC1-7):H03H9/72 |
主分类号 |
H01L23/12 |
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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