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US 7,253,690 B1Granted
Method and apparatus for an LNA with high linearity and improved gain control
AssigneeMarvell International Ltd.
InventorsXiaodong Jin, Lawrence Tse, King Chun Tsai, George Chien
Life of this patent
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Abstract
A low noise amplifier (LNA) comprises a bias circuit having an output. A first transistor includes a control input that communicates with the bias circuit, a first terminal that generates a LNA output current and a second terminal. A device communicates with the second terminal of the first transistor, includes a variable resistor, and has a resistance that is modulated in response to an input signal to the LNA.
Claims13
A low noise amplifier (LNA), comprising:
- a bias circuit having an output;
- a first transistor including:
- a control input that communicates with said bias circuit;
- a first terminal that generates a LNA output current;
- and
- a second terminal;
- and
- a device that communicates with said second terminal of said first transistor, that includes a variable resistor, and that has a resistance that is modulated in response to an input signal to said LNA.
5 more elements
A low noise amplifier (LNA), comprising:
- bias means for biasing and having an output;
- a first transistor including:
- a control input that communicates with said output of said bias means;
- a first terminal that generates a LNA output current;
- and
- a second terminal;
- and
- variable resistance means for providing a variable resistance, that communicates with said second terminal of said first transistor and that includes a variable resistor, for providing a resistance that is modulated in response to an input signal to said LNA.
5 more elements
Dependencies are inferred from the claim text.