All band-low noise amplifier

Recently, with the spread of the Internet and the rapid increase of multimedia materials, the demand for high speed communication networks is increasing. Among them, LNA (Low Noise Amplifier) has been introduced since the late 1980s, and the transmission rate of 1 to 4 Mbps was increased to 100 Mbps now, and as the spread of portable computers and PDAs spread the network regardless of the place. As the demand for access to the network increases, interest in wireless communication technology is increasing rapidly. That is, beyond the acquisition of new frequency resources, the use range of the RF receiver (Radio Frequency Receiver) for supporting all frequency bands in the mobile communication terminal with the existing wireless communication service is spreading. Accordingly, in the present invention, 5.8GHz frequency band using a wireless local area network (WLAN), CDMA, Global System for Mobile communication (GSM), WiBro (Wireless Internet service), and 800MHz- are used. An integrated band low noise amplifier having a cascode structure capable of switching the 2.6 GHz frequency band is proposed. Low Noise Amplifiers, Wideband, Narrowband