| 摘要 |
PURPOSE: An antenna capable of performing impedance matching considering the impedance of the antenna and a power amplifier and an impedance matching apparatus including the same are provided to perform impedance matching using an intermediate value between the impedance of the power amplifier and the impedance of the antenna, thereby improving RF(Radio Frequency) performance. CONSTITUTION: A power amplifier amplifies an input signal. An antenna transmits the amplified signal of the power amplifier. The antenna receives a signal from the outside. The antenna is designed to have impedance corresponding to the impedance of the power amplifier. An impedance matching unit performs impedance matching between the power amplifier and the antenna. The impedance of the power amplifier varies according to the frequency of the input signal. The antenna is designed to have the same impedance as the impedance according to the frequency of the power amplifier. |
