Plasma antenna

On earth we live upon an island of ordinary matter. The different states of matter generally found on earth are solid, liquid, and gas. Sir William Crookes, an English physicist identified a fourth state of matter, now called plasma, in 1879. Plasma is by far the most common form of matter.

Plasma in the stars and in the tenuous space between them makes up over 99% of the visible universe and perhaps most of that which is not visible. Important to ASI s technology, plasmas are conductive assemblies of charged and neutral pa ....etc

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Definition
Plasma antennas are radio frequency antennas that employ plasma as the guiding medium for electromagnetic radiation.

The concept is to use plasma discharge tubes as the antenna elements. When the tubes are energized, they become conductors, and can transmit and receive radio signals. When they are de-energised, they revert to non-conducting elements and do not reflect probing radio signals. Plasma antenna can be Steered electronically. Another feature of the plasma antenna is that it can be turned off rapidly, reducing ringing ....etc

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I want seminar report with pdf ppt plasma arc machine ....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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PLASMA TECHNOLOGY
FOR
WASTE TREATMENT
ABSTRACT
In Nature there is no such thing as waste. If it were not for the waste oxygen that plants produce, we would not have oxygen to breathe Part of the plan for re-using material from living things is to have it decompose(treat) so that it can be assimilated by another life form. These ideas opened the doors for the evolution of a technique called Plasma technology.
Plasma technology is not a new technology but its application for waste treatment, electricity generatio ....etc

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APPLICATION OF PLASMA TECHNOLOGY IN MUNCIPAL WASTE MANAGEMENT

INTRODUCTION

About one-third of municipal waste consists of electronic &biomedical wastes.


Traditionally, inceneration was used for the disposal


Plasma technology is the most promising technology


The paper describes e-waste & plasma e-waste treatment


By-products of the process and their applications has been discussed


WHAT IS AN E-WASTE?


E-waste is the general catagory of outdated or eliminated electronic ....etc

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PRESENTED BY
UPALI APARAJITA DASH


RECONFIGURABLE MICROSTRIP ANTEENA
Microstrip Antenna
 A microstrip patch antenna offers a low profile, i.e. thin, and easy manufacturability, which provides a great advantage over traditional antennas.
 The microstrip technique is a planar technique used to produce lines conveying signals and antennas coupling such lines and radiated waves.
 Microstrip array antennas, i.e., microstrip antennas having an array of microstrips, may be used with applications ....etc

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Definition

Plasma antennas are radio frequency antennas that employ plasma as the guiding medium for electromagnetic radiation.

The concept is to use plasma discharge tubes as the antenna elements. When the tubes are energized, they become conductors, and can transmit and receive radio signals. When they are de-energised, they revert to non-conducting elements and do not reflect probing radio signals. Plasma antenna can be Steered electronically. Another feature of the plasma antenna is that it can be turned off rapidly, reducing ringin ....etc

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A type of flat-panel display that works by sandwiching a neon/xenon gas mixture between two sealed glass plates with parallel electrodes deposited on their surfaces. The plates are sealed so that the electrodes form right angles, creating pixels. When a voltage pulse passes between two electrodes, the gas breaks down and produces weakly ionized plasma, which emits UV radiation. The UV radiation activates color phosphors and visible light is emitted from each pixel.

Also called gas discharge display, a flat-screen technology that uses tiny ....etc

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....etc

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