Invention Grant
- Patent Title: Method and apparatus for canceling balun amplifier noise
- Patent Title (中): 用于消除平衡 - 不平衡转换放大器噪声的方法和装置
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Application No.: US12971307Application Date: 2010-12-17
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Publication No.: US08410856B2Publication Date: 2013-04-02
- Inventor: Ming-Ching Kuo , Yi-Shing Shih , Shih-Hao Tarng
- Applicant: Ming-Ching Kuo , Yi-Shing Shih , Shih-Hao Tarng
- Applicant Address: TW Chutung Hsinchu
- Assignee: Industrial Technology Research Institute
- Current Assignee: Industrial Technology Research Institute
- Current Assignee Address: TW Chutung Hsinchu
- Agency: Ditthavong Mori & Steiner, P.C.
- Main IPC: H03F3/04
- IPC: H03F3/04

Abstract:
The noise figure of a low noise amplifier (LNA) is reduced without sacrificing performance such as gain, IIP3, and wideband impedance matching. Embodiments include configuring a control module of the LNA to sum and scale an output from a current-sensing branch of the LNA and an output from a voltage sensing branch of the LNA into one or more summed and scaled outputs. The control module also feeds the one or more summed and scaled outputs back to at least one of the outputs of the branches of the LNA.
Public/Granted literature
- US20120154056A1 METHOD AND APPARATUS FOR CANCELING BALUN AMPLIFIER NOISE Public/Granted day:2012-06-21
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