发明授权
- 专利标题: General matching network for acoustic wave filters and acoustic resonators
- 专利标题(中): 声波滤波器和声谐振器的通用匹配网络
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申请号: US11505453申请日: 2006-08-17
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公开(公告)号: US07501912B2公开(公告)日: 2009-03-10
- 发明人: Tiberiu Jamneala , Paul Bradley , Michael Frank
- 申请人: Tiberiu Jamneala , Paul Bradley , Michael Frank
- 申请人地址: SG Singapore
- 专利权人: Avago Technologies Wireless IP (Singapore) Pte. Ltd.
- 当前专利权人: Avago Technologies Wireless IP (Singapore) Pte. Ltd.
- 当前专利权人地址: SG Singapore
- 主分类号: H03H7/46
- IPC分类号: H03H7/46
摘要:
A method and circuit matches a device to n filters, wherein each filter is a SAW filter, BAW filter, or FBAR filter. The method and system: (a) provide an inductor or transmission line connected between a common terminal and ground; (b) provide a plurality of capacitance values (C1m, C2m, . . . , Cnm) each corresponding to one of the n filters; and (c) for each of the n filters, directly connect a first terminal of the filter to either: (1) the common terminal, or (2) a first terminal of a corresponding capacitor having the correspondence capacitance value calculated in step (b), where a second terminal of the corresponding capacitor is directly connected to the common terminal.