radio frequency transmitter and receiver module



Introduction
In various industries we have to control various processes from various locations. In hazardous area we cannot enter. So on–off controlling and logging becomes complicated. To avoid this problem we have to think about wireless technology, i.e. we have to control the device without from remote area.
Our project does the same function. Our project is based on the radio frequency tr ....etc

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RADIO FREQUENCY LIGHT SOURCES

INTRODUCTION
¢ Converting electrical power into visible radiation
¢ No electrodes

RF PLASMA
Collection of uncharged molecules
Consists of equal number of positive and negative charges

RF LIGHTING
RF lamps appeared about 100 years ago
DISCHARGE TUBES:
Glass tube with electrodes at each end

DISCHARGE TYPES CAPACITIVE DISCHARGE:
Sheath impedance controls the discharge current of capacitive RF discharge
Power P is proportional to wVrf
[b ....etc

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WIRELESS BATTERY CHARGING SYSTEM USING RADIO FREQUENCY ENERGY HARVESTING




INTRODUCTION AND MOTIVATION

Cellular telephone technology became commercially available in the 1980’s. Since then, it has been like a snowball rolling downhill, ever increasing in the number of users and the speed at which the technology advances. When the cellular phone was first implemented, it was enormous in size by today’s standards. This reason is two-fold; the battery had ....etc

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ABSTRACT
RFID is an area of automatic identification that has quietly been gaining momentum in recent years and is now being seen as a radical means of enhancing data handling processes, complimentary in many ways to other data capture technologies such as barcoding. The object of any RFID system is to carry data in suitable transponders, generally known as tags, and to retrieve data, by machine-readable means, at a suitable time and place. Data within a tag may provide identification for an ite ....etc

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A Technique for Orthogonal Frequency Division Multiplexing
Frequency Offset Correction

Abstract:
The Orthogonal Frequency Division Multiplexing (OFDM) is a Multi Carrier Modulation technique employing Frequency Division Multiplexing of orthogonal subcarriers. It is also sometimes called as discrete multitone modulation (DMT). It is better than CDMA in high bit rate and Broadband Communications .It is a multi carrier technique, which is very sensitive to Frequency Offset between transmitter and receiver. Th ....etc

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Characterization of radio frequency plasma using Langmuir probe
and optical emission spectroscopy
M. Nisha, K. J. Saji, R. S. Ajimsha, N. V. Joshy, and M. K. Jayaraj
a
Optoelectronics Devices Laboratory, Department of Physics, Cochin University of Science
and Technology, Kochi-682 022, Kerala, India
Received 21 February 2005; accepted 4 January 2006; published online 15 February 2006
The radio frequency plasma generated during the sputtering of Indium Tin Oxide target using Argon
was analyzed by Langmuir probe and optical-emission spec ....etc

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1. ABSTRACT
RF communications find great applications in our daily. It has got increased priority in security systems, communications, automations etc. The proposed project is a RF based child monitoring system which is practically reliable and easy to install. Radio Frequency based real time “Child monitoring and alarm system” helps in monitoring the child by the parents. The device monitors the child and produces an alert signal when ever the child passes a certain distance i.e. for instance ....etc

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ABSTRACT
After years of research and development, radio frequency light sources are just now becoming a mainstream lighting option. RF light sources follow the same principles of converting electrical power into visible radiation as conventional gas discharge lamps. The fundamental difference between RF lamps is that RF lamps operate without electrodes .
There are three practical ways to energize RF light sources, though there are more ways to create RF plasmas. These three ways correspond to differen ....etc

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hi
pls send in histry ,intoduction,how it's work,how it's use in nenotchnologo & also send ppt.
pls send within 1day.
Thankyou. ....etc

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Radio frequency based real time Child Monitoring and alarm system


INTORDUCTION
Background
The Child Monitoring System is a system which is developed using RF technology to monitor child in a certain area. The system is separated into two parts. This thesis will concentrate more on parent’s part while the thesis on child’s part will be concentrated by other person. Parents have the master device while the child has the slave device. The ma ....etc

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hi
pls send in histry ,intoduction,how it's work,how it's use in nenotchnologo & also send ppt.
pls send within 1day.
Thankyou. ....etc

[:=Read Full Message Here=:]