发明名称 |
Duplexer using surface acoustic wave filters and electronic device equipped with the same |
摘要 |
A duplexer includes two surface acoustic wave (SAW) filters having different center frequencies; a phase matching circuit that matches phases of the two SAW filters; a package in which the SAW filters and the phase matching circuit are housed, the package being composed of multiple layers; and a line pattern provided between at least one of the SAW filters and at least one of a transmit terminal and a receive terminal of the duplexer. The line pattern runs on at least two of the multiple layers within a range defined by peripheral ground patterns provided in the package.
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申请公布号 |
US2004219888(A1) |
申请公布日期 |
2004.11.04 |
申请号 |
US20040834273 |
申请日期 |
2004.04.29 |
申请人 |
FUJITSU MEDIA DEVICES LIMITED;FUJITSU LIMITED |
发明人 |
IWAMOTO YASUHIDE;INOUE SHOGO;TSUTSUMI JUN |
分类号 |
H01L23/12;H03H9/25;H03H9/64;H03H9/72;H04B1/52;(IPC1-7):H04B1/40 |
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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