A concurrent dual-band 2.4/5.2 GHz low-noise amplifier using gain enhanced techniques

This paper presents the design and experimental results of a concurrent dual-band 2.4/5.2GHz low-noise amplifier. To achieve the concurrent gain and impedance matching at the both bands, input and output matching using two poles matching and LC resonant network are implementation, respectively. In low-noise amplifier using gain enhanced technique in order to improve gain since LC resonant matching network limit gain. The LNA is has been fabricated in a 0.18-um CMOS process and employs a supply voltage of 1 V. The measured power gain and noise figure for 2.4GHz (5.2GHz) is 12.9dB (8.9dB) and 3.7dB (3.7dB), respectively. The linearity parameters of IP1dB and IIP3 are −14dBm and −4dBm at 2.4GHz, and −11dBm and −1dBm at 5.2GHz, respectively. The power consumption is 7.6mW.