Realization of Gm Enhancement Current Reuse LNA for High Frequency Applications

This research paper presents the design of a Low-Noise Amplifier (LNA) with high gain and low noise figure over a wide bandwidth of 2.9 GHz. The realized LNA utilizes current reuse technique, g
m
enhancement, and transformer coupling to achieve these performance characteristics. Simulation results using Cadence Spectre RF tool show that the proposed LNA has a maximum gain of 15.25 dB and a noise figure of 6.5 dB. The current reuse technique enables low power consumption, while the g
m
enhancement increases the transconductance of the device, resulting in higher gain. The transformer coupling provides impedance matching and improves the input and output matching networks of the LNA. The realized LNA has potential applications in wireless communication systems, such as WLAN, WiMax, and LTE, where high gain is essential for reliable and efficient communication.