Invention Grant
US08238867B1 Low noise amplifier (LNA) suitable for use in different transmission environments and receiver using such an LNA
有权
适用于不同传输环境的低噪声放大器(LNA)和使用这种LNA的接收机
- Patent Title: Low noise amplifier (LNA) suitable for use in different transmission environments and receiver using such an LNA
- Patent Title (中): 适用于不同传输环境的低噪声放大器(LNA)和使用这种LNA的接收机
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Application No.: US13036892Application Date: 2011-02-28
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Publication No.: US08238867B1Publication Date: 2012-08-07
- Inventor: Ramin Khoini-Poorfard
- Applicant: Ramin Khoini-Poorfard
- Applicant Address: US TX Austin
- Assignee: Silicon Laboratories Inc
- Current Assignee: Silicon Laboratories Inc
- Current Assignee Address: US TX Austin
- Agency: Polansky & Associates, P.L.L.C.
- Agent Paul J. Polansky
- Main IPC: H04B1/16
- IPC: H04B1/16

Abstract:
A low-noise amplifier includes first and second transconductance paths and first and second variable capacitive dividers. The first transconductance path has a first terminal for receiving a first input signal, a control terminal, and a second terminal for providing a first output signal. The second transconductance path has a first terminal for receiving a second input signal, a control terminal, and a second terminal for providing a second output signal. The first variable capacitive divider has a first terminal for receiving the first input signal, a second terminal coupled to a reference voltage terminal, and an intermediate terminal coupled to the control terminal of the second transconductance path. The second variable capacitive divider has a first terminal for receiving the second input signal, a second terminal coupled to the reference voltage terminal, and an intermediate terminal coupled to the control terminal of the first transconductance path.
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