Invention Grant
- Patent Title: Method and apparatus for broadband input matching with noise and non-linearity cancellation in power amplifiers
- Patent Title (中): 宽带输入与功率放大器噪声和非线性消除匹配的方法和装置
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Application No.: US13171257Application Date: 2011-06-28
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Publication No.: US08390378B2Publication Date: 2013-03-05
- Inventor: Wai Lim Gnai
- Applicant: Wai Lim Gnai
- Applicant Address: US CA San Diego
- Assignee: Entropic Communications, Inc.
- Current Assignee: Entropic Communications, Inc.
- Current Assignee Address: US CA San Diego
- Agency: Sheppard, Mullin, Richter & Hampton LLP
- Agent Bruce Greenhaus
- Main IPC: H03F3/45
- IPC: H03F3/45

Abstract:
A CMOS differential power amplifier having broadband input matching with Noise and Non-linearity Cancellation. The broadband input match is realized by using two “Diode-Connected” NFETs (i.e., N-type Field Effect Transistors). Resulting noise degradation is reduced by using a noise cancellation structure. By using the same structure the disclosed method and apparatus also achieves non-linearity cancellation.
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