Receiver, low noise amplifier and wireless communication apparatus

A receiver for receiving beamforming signal from a plurality of antenna, a low noise amplifier supporting the beamforming function, and a wireless communication apparatus. The low noise amplifier mayinclude first and second transistors and a variable capacitance circuit connected to a gate of the second transistor. The variable capacitance circuit may selectively change capacitance thereof basedon a capacitance control signal applied thereto according to beam-forming information, where the changed capacitance correspondingly causes a phase change in an output signal of the low-noise amplifier. A similar scheme may be employed for amplifiers in transmit signal paths to steer a transmit beam. 一种用于经由多个天线接收波束成形信号的接收器、用于支持波束成形功能的低噪声放大器以及无线通信装置。低噪声放大器可包含第一晶体管和第二晶体管以及连接到第二晶体管的栅极的可变电容电路。可变电容电路可根据波束成形信息基于施加于电路的电容控制信号选择性地改变其电容，其中改变的电容相对应地导致低噪声放大器的输出信号的相位变化。针对放大器可在发射信号路径中采用类似方案以操控发射波束。