Invention Grant
US08644773B2 Multiband low noise amplifier (LNA) with parallel resonant feedback
有权
具有并联谐振反馈的多频段低噪声放大器(LNA)
- Patent Title: Multiband low noise amplifier (LNA) with parallel resonant feedback
- Patent Title (中): 具有并联谐振反馈的多频段低噪声放大器(LNA)
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Application No.: US12634706Application Date: 2009-12-10
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Publication No.: US08644773B2Publication Date: 2014-02-04
- Inventor: Haki Cebi
- Applicant: Haki Cebi
- Applicant Address: US MA Woburn
- Assignee: Skyworks Solutions, Inc.
- Current Assignee: Skyworks Solutions, Inc.
- Current Assignee Address: US MA Woburn
- Agency: Knobbe, Martens, Olson & Bear, LLP
- Main IPC: H04B1/38
- IPC: H04B1/38

Abstract:
A multiband low noise amplifier (LNA) with parallel resonant feedback includes an amplifier element configured to receive a radio frequency (RF) signal at an RF input and provide an amplified version of the RF signal at an RF output, a resistive feedback circuit coupled between the RF input and the RF output, and a plurality of series-coupled resonant circuits coupled in series with the resistive feedback circuit between the RF input and the RF output of the amplifier element, wherein each of the resonant circuits is configured to operate as an effective short circuit at a frequency other than a resonant frequency and configured to operate as an effective open circuit at the resonant frequency to decouple the resistive feedback from the amplifier element at each resonant frequency.
Public/Granted literature
- US20110143685A1 Multiband Low Noise Amplifier (LNA) With Parallel Resonant Feedback Public/Granted day:2011-06-16
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