The main parameters that define the performance of an LNA are gain, noise figure, input and output impedance, bandwidth, stability, linearity, and power consumption. Gain is the ratio of the output power to the input power of the amplifier, and it determines how much the signal is amplified. Noise figure is a measure of how much noise the amplifier adds to the signal, and it should be as low as possible. Input and output impedance are the resistances seen by the signal at the input and output terminals of the amplifier, and they should match the impedance of the antenna and the following stage, respectively. Bandwidth is the range of frequencies that the amplifier can amplify without significant loss or distortion, and it should cover the desired frequency band of the receiver. Stability is the ability of the amplifier to avoid oscillations or feedback, and it should be ensured by proper biasing and feedback networks. Linearity is the property of the amplifier to maintain a constant gain and phase across the input power range, and it affects the distortion and intermodulation products generated by the amplifier. Power consumption is the amount of DC power that the amplifier draws from the supply, and it should be minimized to reduce heat dissipation and battery drain.