2. Contents:
What is plasma?
Plasma antenna
Working of plasma antenna
Classification of plasma antenna
Characteristics/features
Advantages
Limitations
Applications
Development progress
Conclusion
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3. WHAT IS PLASMA?
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Plasma is similar to gas in which certain portion of particles are ionized.
Plasma is formed when that much of energy is applied to gas at which its particles
ionize.
Plasma is,therefore, considered as fourth state of matter.
Because of ionized particles/carriers ,plasma is conductive.
4. Traditional Antenna:
An antenna is a device used for the purpose of reception as well
as transmission of electromagnetic waves.
Physically, an antenna is a collection of one or more conductors
called as its elements.
It is sized to emit radiations at one or more selected
frequencies.
Shape and size of conventional
antenna depends upon the area
of application
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5. Plasma Antenna
Plasma antennas are radio frequency antennas that employ
plasma as the guiding medium for electro-magnetic
radiations.
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When the Gas is ionized to a
plasma state then it becomes
conductive, allowing radio
frequency (RF) signals to be
transmitted or received.
6. CLASSIFICATION OF PLASMA ANTENNAS
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PLASMA ANTENNA
GAS PLASMA
ANTENNA
SOLID STATE PLASMA
ANTENNA [ PSiAn ]
Nature of plasma
A gas is ionized to create
a plasma
Plasma is formed due to
cloud of electrons
Frequency range only upto 90GHz 1-300GHz
Size Large Compact
7. How Does Gas Plasma Antenna Works?
When supply is given, gas gets ionized to
plasma.
Plasma is energized.
Behaves as a conductor.
Generation of localized plasma.
Plasma acts as a mirror.
Reflects the beam.
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9. Working of PSiAn Antenna:
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Employs thousands of diodes on a
silicon chip.
Produces electron clouds when
charged.
These act as mirrors and reflect
beam.
Uses beam forming technology.
Used for high frequencies.
Smaller in size.
Cheaper compared to gas plasma
antennas.
10. Traditional antenna vs Plasma antenna:
Traditional antennas are bulkier and of large size as
compared to plasma antennas.
Traditional antennas work at lower frequencies whereas
plasma antennas at higher.
Traditional antennas have ringing effect whereas plasma
antennas don’t have.
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12. ADVANTAGES
Lighter than conventional antennas.
Compact and so portable.
Maintenance-free.
Invisible to radar.
Dynamically reconfigurable.
Capable of transmitting signals at fast speed.
Energized and de-energized in seconds.
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13. LIMITATIONS
Higher power consumption.
Plasma volumes must be stable and repeatable.
High frequency signals do not penetrate the walls.
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14. Applications:
Military sector .
Electronic warfare.
Submarines/ships.
Wireless internet.
Radio and TV broadcasting.
Defense, Space and Homeland Security.
Space wave communication.
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15. DEVELOPMENT PROGRESS
Growing need for speed of communication n/w
along with data handling capacity are the major
forces helping to explore new ways of transmission
and reception.
It is expected that if PSiAn can be used for trans-
mission purpose the data transmission rate would
go upto 7 Gbps--------Wi-Gig.
Car anti-collision radar system.
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16. Conclusion…..
Plasma antenna works similar as traditional antenna
does with plasma replacing the metal conductor of
traditional antenna.
Because of plasma as conducting material,it offers
some advantages over normal antenna.
Invisible to radar and can release short pulses of
signals,
It can pave way towards faster wireless internet.
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17. References;
M. Moisan and Z. J. Zakrzewski, “Plasma sources based on the propagation of
electromagnetic surface waves,”
http://electronicsforu.com/electronicsforu/circuitarchives.plasma
antenna/view_article.asp.
Theodore Anderson, 2011. Plasma Antennas. Artech House Papers from
Conference Proceedings.
Alex Anderson, E. P. Pradeep, Experimental and theoretical results with
plasma antennas," IEEE Transactions on Plasma Science,
http://www.ukessays.com/essays/information-technology/advantages-of-the-
plasma-antenna-information-technology-essay.php.
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