Low noise amplifier for wideband tunable matching
AssigneeElectronics and Telecommunications Research Institute
InventorsSeon-Ho Han, Mun-Yang Park, Hyun-Kyu Yu
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Abstract
Provided is a low noise amplifier with a common source and a source degeneration, which has linearity, power gain, noise factor, and lossless input matching. The low noise amplifier includes: a first inductor having one terminal connected to an input terminal receiving a signal; a second inductor having one terminal connected to a ground; a MOS transistor having a gate connected to the first inductor, a source connected to the other terminal of the second inductor, and a drain transmitting a signal; and a variable capacitor connected between the source and gate of the MOS transistor and varying an input matching frequency at the input terminal.
Claims11
A low noise amplifier having a common source and source degeneration structure, the low noise amplifier comprising:
- a first inductor having one terminal connected to an input terminal receiving a signal;
- a second inductor having one terminal connected to a ground;
- a MOS transistor having a gate connected to the first inductor, a source connected to the other terminal of the second inductor, and a drain transmitting a signal;
- and
- a variable capacitor connected between the source and gate of the MOS transistor and varying an input matching frequency at the input terminal.
Dependencies are inferred from the claim text.