A dual wideband CMOS LNA design for the 4G of wireless applications

Abstract

International audienceA dual wide band low noise amplifier for WiMAX (802.16a) standard is presented. The circuit is designed with AMS 0.35 mum CMOS process. This LNA is designed to cover the two frequency ranges for licensed and unlicensed bands of the WiMAX 2-4 GHz and 5-6 GHz. The proposed amplifier achieves a wide band input matching with Sn lower than -10 dB for all the band 2-6 GHz, a flat gain for the two bands; 13 db between 2-4 GHz and 10 dB between 5-6 GHz. The noise figure is around 3 dB for all the band and 2-6 GHz. The presented dual wide band LNA employs a Chebychev filter for input matching and an inductive shunt feedback for output matching. The power consumption is 62.5 mW under a power supply voltage of 2.5 V

Design a Broad-band High flatness Gain Low Noise Amplifier for radar Applications

“…There are three techniques to design broad band LNA (compensated matching network [2], balanced amplifier [3] and negative feedback [4]. Some references about LNA design have been published, such as proposed the utilization of dual-wide band for Wi MAX with (2-4GHz and 5-6GHz) LNA in [5] Over the band of interest , Noise figure (NF) differ from 3-3.7dB , this situation does not support the LNA designs for 3G/4G applications. For this band, the design of LNA with a NF of 0.588 dB, unconditionally stable and the gain of 12.85 dB which has been published in [6].…”

Design and implementation of a broad-band high gain low noise amplifier for 3G/4G applications

“…Some references about this LNA designs have been published. The utilization of dual wide band with (2)(3)(4) GHz and 5-6 GHz) has been proposed in [7]. Also, 2.3 GHz LNA for WiMAX is published in [8] [9].…”