A low noise amplifier is designed at about 2GHz as a balanced type by using the branch line hybrid. This design provides impedence matching as well as the low noise termination conditions through the hybrid sections. Implimented amplifier using two stage yields the overall gain of 24 dB, noise figure of 1.4 dB, and the input and output VSWR of 1.3 and 1.4, respectively, at 2.2 GHz.