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

Low noise amplifier (LNA) suitable for use in different transmission environments and receiver using such an LNA
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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