A b s t r a c t Keywords: Cascode Topology Low Noise Amplifier Noise Figure Particle Swarm Optimization Design of a LNA is a complex process. Because it involves various parameters and needs complex trade-offs. This paper presents an optimized design of a low noise amplifier (LNA) using particle swarm optimization (PSO) technique. The proposed LNA has a cascode structure with inductive source d...

In this paper, power amplifier operating with center frequency of 947.5 MHz, which can be used for the transmitter in beamforming systems, is proposed. The power amplifier implemented provides high power added efficiency (PAE) of 71.967% and low noise figure (NF) as low as 1.525. The linearity of the power amplifier is improved by using square law and cubic law analog predistortion techniques. ...

In this paper, a low-power ultrawideband (UWB) lownoise amplifier (LNA) is proposed. Here, we propose a structure to combine the common gate with band pass filters, which can reduce parasitic capacitance of the transistor and to achieve input wideband matching. The π-section LC network technique is employed in the LNA to achieve sufficient flat gain. A bias resistor of large value is placed bet...