1. Mobile Phone Signal Jammer for GSM, CDMA and 3G Networks with Prescheduled
2. Implementation of high sensitive GSM signal detector with audio visual alert indication
3. Implementation of model Radar target direction identifier with remote station alert system
4. Study of Parabolic Antenna for Direct to Home Communication
5. PC to Microcontroller Secured Data Communication using Fiber Optic communication
6. Ultrasonic Target Range Estimation using SONAR Technology
7. Implementation of data and voice communication from PC to GSM network ....etc

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to get information about the topic plasma antennas full report ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-plasma-antenna?page=2

http://seminarsprojects.net/Thread-plasma-antennas

http://seminarsprojects.net/Thread-plasma-antenna?page=3 ....etc

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pls give details of fiber antennas for free space communicTION ....etc

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the new world of Plasma Antennas



Antenna technology

Physically, an antenna is an arrangement
of one or more conductors, usually
called elements. In transmission,
an alternating current is created in the
elements by applying a voltage at the
antenna terminals, causing the elements
to radiate an electromagnetic field. In
reception, the inverse occurs. An electromagnetic
field from another source
induces an alternating current in the elements
and a corresponding voltage at
....etc

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Small Fractal Antennas

1 Problem
Antennas for hand-held communication devices are necessarily small, and typically use wavelengths
that are large compared to the size of the antenna. This typically implies that
the magnitude of the antenna reactance X (= imaginary part of the antenna impedance) is
large compared to that of its radiation resistance Rrad (which is related to the time-average
radiated power P and the peak current I0 at the feedpoint by P = I2
0Rrad/2), so that it is
challenging to build an effective imped ....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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Abstract
This seminar describes three different antenna systems for mobile vehicle applications. The antennas are either patches or derivatives in all cases. The first is a dual-band telephone antenna with a low profile and wide bandwidth. Operating at 900 MHz and 1800 MHz, with a VSWR of better than 1.7, it is a hybrid construction combining a monopole with a top-loading patch shorted to the ground-plane. Extra-shorted pins provide the upper frequency band coverage. It provides monopole radiation characteristics and can be hidden under a plas ....etc

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Submitted by
NEERAJ MANI TRIPATHI


ABSTRACT
A detailed study on the various next generation nature inspired geometry antennas
i.e. fractal antennas is performed. Mainly four types of printed fractal antennas i.e.
Sierpinski Carpet, Quasi Koch Fractal, Mix fractal and Sierpinski Gasket Fractal
are designed using 3D FEM based solver (Ansoft HFSS), which are basically
variants of Patch antenna. Maximum iteration is three and these antennas are fed
using three basic techniques Transformer Feed, Inset Feed and ....etc

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To get more information about the topic plasma antennas please refer the page link below
http://seminarsprojects.net/Thread-plasma-antennas

http://seminarsprojects.net/Thread-plasma-antennas-seminars-required

http://seminarsprojects.net/Thread-plasma-antenna?page=2
http://seminarsprojects.net/Thread-plasma-antenna?mode=linear ....etc

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Abstract
Virtual Cellular Networks (VCN) are an attractive type of adaptive
wireless communication architecture for propagation- and
coverage-limited environments. In this paper, we investigate the
advantages of combining a VCN and multiple receiving antennas
for the downlink resulting in a MIMO system. Several ways
to combine the signals with different levels of complexity are
presented. In the most complex case, we show that it is possible
to add coherently the contribution of each antenna in a virtual
cell ....etc

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