Receiving device and method for removing mismatch in wireless communication system, and low-power amplifier thereof

摘要

The present invention relates to a receiving device and method for removing a mismatch in a wireless communication system, and to a low noise amplifier (LNA) therefor. According to the present invention, the receiving method for removing the mismatch comprises the steps of: distinguishing the type of input signal received through a wireless network; controlling such that a common bias is applied to transistors within a low noise amplifier, if said input signal is a wideband signal; and outputting a signal from which said mismatch has been removed, by using a current mirror mode in which current paths within said low noise amplifier are crossed.

主权项

1. A receiving method that removes a mismatch between current paths of a Low Noise Amplifier (LNA) in a wireless network, the method comprising:
determining a type of an input signal received by the LNA through the wireless network; applying a common bias to transistors in the LNA when the type of the input signal is a wideband signal; applying the input signal to a current mirror in which a first current path of the LNA crosses a second current path of the LNA to remove the mismatch between the first current path and the second current path of the LNA; and outputting an output signal generated by the current mirror.