With exponential growth in the area for years, now there are lots of wireless standards for various frequency bands.
There have been many attempts to create a transceiver that can operate Current reuse topology in UWB CMOS LNA FREE DOWNLOAD T Thierry ,In February 2002, the Federal Communications Commission (FCC) gave the permission for the marketing and operation of a new class of products incorporating Ultra Wide Band (UWB) technology.
Because of size limitations, available power is severely constrained in terms of both supply voltage and current.
Amplifiers for these applications must operate from these low voltages and draw very little current.
Values for each parameter depend on the technology available during the design.
Today, micro-power amplifiers can achieve speed/power ratios of 10 k Hz/µA; and this will more than double within the next year.
Typically, Design of an LNA in 0.18 µm CMOS Technology with a Flat and High Gain Covering Full Ultrawideband for Low Power Applications FREE DOWNLOAD ABSTRACT In this paper an ultrawideband low noise amplifier is proposed. The design is based on the current reusing structure to provide the wide band characteristics.
A wideband flat gain (S21) about 20d B is Design of a Multistandard LNA for DECT and Bluetooth in 0.18 J.
In addition, their input and output signal ranges should be as wide as possible to obtain sufficient dynamic range (full-scale signal-to-noise).
The best devices will have an output voltage that can swing from the positive supply to ground and input ranges that can even exceed the power-supply range.