RF modulator

Known as: RF Unit, RF adapter 
An RF modulator (or radio frequency modulator) is an electronic device whose input is a baseband signal which is used to modulate a radio frequency… (More)
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Papers overview

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Review
2017
Review
2017
The deployment of Internet of Things (IoT) devices and services is accelerating, aided by ubiquitous wireless connectivity… (More)
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Review
2017
Review
2017
1874 Sleep duration and quality are associated with immune markers, self-rated health, and mortality in a large cohort (NHANES… (More)
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Review
2016
Review
2016
---------------------------------------------------------------------***--------------------------------------------------------------------Abstract -With the worldwide demand for larger bandwidth and greater mobility there is a rapid advancement of broadband wireless communications. The high capacity and low loss of optical fibre has seen its exploding growth in the last few decades in the LAN’s and WAN’s. Free space optical (FSO) wireless communication has emerged as a viable technology for bridging the gap in existing high date rate fibre network and as a temporary backbone for rapidly deployable mobile wireless communication infrastructure. Free space optical communication offers the potential to send large amount of data security over moderate distances without the expense of laying fibre optic cable. The technology is helpful where the physical connection of the transmitter and receiver locations is difficult. These robust systems which establish communication links by transmitting laser beams directly through the atmosphere, have matured to the point that mass produced models are now available. FSO system offers many features among them being the low-start up and operational cost, rapid development and high fibre-like bandwidth. It offers capacities in the range of 100Mbps to 2.5Gbps and demonstration systems report data rates as high as 160Mbps.It is a line-of-sight technology that currently enables optical transmission up to 2.5Gbps of data, voice and video communications through the air, allowing optical connectivity without deploying fibre-optic cables or securing spectrum licences. Even though FSOs provide high security as its laser beams cannot be determined with the devices like spectrum analyser or RF meters, there are some challenges (atmospheric turbulence, scintillation, object sway) in the implementation of it. 
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Highly Cited
2010
Highly Cited
2010
The ability to silence the activity of genetically specified neurons in a temporally precise fashion would open up the ability to… (More)
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Highly Cited
2008
Highly Cited
2008
This paper proposes a new architecture of delta-sigma (DS) modulator suitable for RF digital transmitter design. This novel… (More)
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2008
2008
Polar modulated RF amplifiers have the potential to enhance efficiency while achieving sufficient linearity for a signal having… (More)
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Highly Cited
2007
Highly Cited
2007
A wideband software-defined digital-RF modulator targeting Gb/s data rates is presented. The modulator consists of a 2.625-GS/s… (More)
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Highly Cited
2007
Highly Cited
2007
This paper presents a system-independent transmitter architecture based on a direct-digital RF-modulator which combines the D/A… (More)
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Highly Cited
2006
Highly Cited
2006
The power efficiency of a RF Class-D amplifier with a bandpass sigma-delta (SigmaDeltaM) modulator is analyzed for a… (More)
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Highly Cited
2001
Highly Cited
2001
This paper presents a novel fully integrated passive transponder IC with 4.5or 9.25-m reading distance at 500-mW ERP or 4-W EIRP… (More)
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