发明名称 |
Saw filter duplexer device with optimal location of a phase matching line pattern and wire bonding pads |
摘要 |
This invention is a duplexer device comprising two surface acoustic wave filters having band center frequencies different from each other and a line pattern for matching phases of the two surface acoustic Wave filters, wherein provided are: a wire bonding pad layer having a plurality of pads including. pads. for connecting the line pattern with terminals on the surface acoustic wave filters and pads for connecting a common terminal connected to. an external antenna with the line pattern; and a first pad connecting one of the surface acoustic wave filters and a first end of the line pattern and a second pad connecting the common terminal and a second end of the line pattern being arranged at positions that are the most distant from each other inside the wire bonding pad layer.
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申请公布号 |
US6466103(B2) |
申请公布日期 |
2002.10.15 |
申请号 |
US20010892658 |
申请日期 |
2001.06.28 |
申请人 |
FUJITSU LIMITED;FUJITSU MEDIA DEVICES LIMITED |
发明人 |
IWAMOTO YASUHIDE;IKATA OSAMU;HIRASAWA NOBUO;FUKUSHIMA HIDENORI |
分类号 |
H03H9/25;H03H9/64;H03H9/72;(IPC1-7):H03H9/72 |
主分类号 |
H03H9/25 |
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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