| 发明名称 |
Band reject filters |
| 摘要 |
Acoustic resonators such as surface acoustic wave (SAW) devices and thin film bulk acoustic resonators (FBAR) can be configured to produce a band reject filter. Such a filter overcomes the insertion loss and power handling limitations of conventional band pass configurations and as such can be used in power amplifier and duplexer applications.
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| 申请公布号 |
US6710677(B2) |
申请公布日期 |
2004.03.23 |
| 申请号 |
US20020074310 |
申请日期 |
2002.02.12 |
| 申请人 |
NORTEL NETWORKS LIMITED |
发明人 |
BEAUDIN STEVE A;SYCHALEUN SOMSACK;JIAN CHUN-YUN |
| 分类号 |
H03H9/145;H03H9/58;H03H9/60;H03H9/64;(IPC1-7):H03H9/205;H03H9/54;H03H9/72;H03F1/08 |
主分类号 |
H03H9/145 |
| 代理机构 |
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