AT2659S is a low noise amplifier (LNA) chip with low power consumption, high gain and low noise figure, which supports L1 band multi-mode global satellite positioning and can be used in GNSS navigation devices such as Beidou II, GPS, Galileo, Glonass and so on. The chip is fabricated by advanced SiGe technology and packaged in 6 pin SOT23-6 package of 2.9mm × 2.8mm × 1.1 mm.