Cmos
CMOS DESIGN AND ANALYSIS OF ULTRA WIDE BAND RECEIVERS
ABSTRACT
Ultrawide band is a unique technology which is used for commercial communications. In this ,I will explain about UWB and how to integrate it with CMOS technology.This is by designing a UWB receiver using CMOS technology. Use Verilog to build behavioral model of LNA,mixer,bandpass filter,integrator.Instante the components in Cadence and run simulation in time domain. In this paper ,I have specified the design considerations of ultra wideband (UWB) receiver architecture. Here, a more power efficient architecture should undertake part of the signal processing in the analog-domain. Next, the multiband UWB transceiver is studied and power-efficient circuits is designed for the transceiver.
ABOUT UWB
Ultrawide band technology is a wireless technology to transmit large amount of digital data as modulated coded impulses over a very wide spectrum of frequency with very low power for a short distance.In 2002,the Federal Communications Commission allows UWB Communication in the 3.1-10.6 GHz band having a -10 dB bandwidth greater than 500 MHz and a maximum equivalent isotropic radiated power spectral density of -41.3 dBm/MHz.UWB transmits information using very short pulses requiring a very wide instantaneous bandwidth.
Bf=2(fh-fl)/fh+fl
As UWB has very large instantaneous bandwidth hence it offers substantial increase in channel capacity,which can be perceived from Shannon link formula:
C=Blog(1+SNR).
The link capacity is proportional to bandwidth and and follows a logarithmic relation with signal to noise ratio.Due to linear relationship between channel capacity and bandwidth ,a very small radiation power is needed to achieve high data rate when the signal bandwidth is large.The frequency domain spectral content of UWB signal is dependent upon pulse waveform shape and pulse width.The most common UWB signals include Gaussian monocycle,Gaussian doublet,Gaussian pulse,Raleigh monocycles and
ABSTRACT
Ultrawide band is a unique technology which is used for commercial communications. In this ,I will explain about UWB and how to integrate it with CMOS technology.This is by designing a UWB receiver using CMOS technology. Use Verilog to build behavioral model of LNA,mixer,bandpass filter,integrator.Instante the components in Cadence and run simulation in time domain. In this paper ,I have specified the design considerations of ultra wideband (UWB) receiver architecture. Here, a more power efficient architecture should undertake part of the signal processing in the analog-domain. Next, the multiband UWB transceiver is studied and power-efficient circuits is designed for the transceiver.
ABOUT UWB
Ultrawide band technology is a wireless technology to transmit large amount of digital data as modulated coded impulses over a very wide spectrum of frequency with very low power for a short distance.In 2002,the Federal Communications Commission allows UWB Communication in the 3.1-10.6 GHz band having a -10 dB bandwidth greater than 500 MHz and a maximum equivalent isotropic radiated power spectral density of -41.3 dBm/MHz.UWB transmits information using very short pulses requiring a very wide instantaneous bandwidth.
Bf=2(fh-fl)/fh+fl
As UWB has very large instantaneous bandwidth hence it offers substantial increase in channel capacity,which can be perceived from Shannon link formula:
C=Blog(1+SNR).
The link capacity is proportional to bandwidth and and follows a logarithmic relation with signal to noise ratio.Due to linear relationship between channel capacity and bandwidth ,a very small radiation power is needed to achieve high data rate when the signal bandwidth is large.The frequency domain spectral content of UWB signal is dependent upon pulse waveform shape and pulse width.The most common UWB signals include Gaussian monocycle,Gaussian doublet,Gaussian pulse,Raleigh monocycles and
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