- 专利标题: Tunable multi-path filter
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申请号: US15190072申请日: 2016-06-22
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公开(公告)号: US09712140B1公开(公告)日: 2017-07-18
- 发明人: Raul Salvi , Joseph P. Heck
- 申请人: MOTOROLA SOLUTIONS, INC.
- 申请人地址: US IL Chicago
- 专利权人: MOTOROLA SOLUTIONS, INC.
- 当前专利权人: MOTOROLA SOLUTIONS, INC.
- 当前专利权人地址: US IL Chicago
- 代理机构: Michael Best & Friedrich LLP
- 主分类号: H03H11/12
- IPC分类号: H03H11/12 ; H03H11/04 ; H03H11/06 ; H04B1/10 ; H04L7/00
摘要:
A tunable multi-path filter, a method for filtering a radio frequency signal with the tunable multi-path filter, and a communication device including the tunable multi-path filter. In one embodiment, the tunable multi-path filter includes a voltage controlled current source, an oscillator source, and at least two filter paths. The voltage controlled current source for receiving a radio frequency (RF) signal and generating a current signal. The oscillator source for generating a tunable clock signal. Each of the at least two filter paths are coupled to the voltage controlled current source and the oscillator source, and are configured to generate an output voltage signal based at least in part on the current signal and the tunable clock signal. In some embodiments, the tunable multi-path filter further includes a carrier signal rejection component that is configured to reduce the carrier feedthrough in the output voltage signals.
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