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

[:=Read Full Message Here=:]

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

[:=Read Full Message Here=:]

to get information about the topic microstrip patch antenna design full report ,ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-wideband-microstrip-patch-antenna-design-for-breast-cancer-tumour-detection

http://seminarsprojects.net/Thread-design-of-an-s-band-circular-microstrip-patch-antenna

http://seminarsprojects.net/Thread-microstrip-patch-antenna-full-report

http://seminarsprojects.net/Thread-design-and-development-of-x-band-micro-strip-patch-antenna

http://seminarsprojects.net/Thread-compact-micro ....etc

[:=Read Full Message Here=:]

Fractal Antennas

There has been an ever-growing demand, in both the military as well as the commercial sectors, for antenna designs that possess the following highly desirable attributes: 1. Compact size 2. Low profile 3. Conformal 4. Multi-band or broadband

There are a variety of approaches that have been developed over the years, which can be utilized to achieve one or more of these design objectives. Recently, the possibility of developing antenna designs that exploit in some way the properties of fractals to achieve these goals, at le ....etc

[:=Read Full Message Here=:]

to get information about the topicfractal antenna please refer the page link bellow
http://seminarsprojects.net/Thread-fractal-antennas

http://seminarsprojects.net/Thread-fractal-antennas-a-novel-miniaturization-technique-for-wireless-communications

http://seminarsprojects.net/Thread-fractal-antennas-design-characteristics-and-application ....etc

[:=Read Full Message Here=:]

to get information about the topicfractal antenna please refer the page link bellow
http://seminarsprojects.net/Thread-fractal-antennas

http://seminarsprojects.net/Thread-fractal-antennas-a-novel-miniaturization-technique-for-wireless-communications

http://seminarsprojects.net/Thread-fractal-antennas-design-characteristics-and-application ....etc

[:=Read Full Message Here=:]

A NEW REDUCED SIZE MICROSTRIP PATCH ANTENNA WITH FRACTAL SHAPED DEFECTS


Abstract With development of communication with integration
technology, size reduction of microstrip antennas is becoming an
important design consideration for practical applications. Here a new
microstrip antenna with Koch shaped fractal defects on the patch
surface is presented. Using this method, the overall electric length
of the antenna is increased largely and hence the size of antenna is
reduced t ....etc

[:=Read Full Message Here=:]

Abstract
Two major objectives are concerned in this paper. On one hand, a multiplicity of typical methodologies available for achieving dual-frequency operation for microstrip patch antennas are summarized and classified into three categories, based on their intrinsic mechanisms. On the other hand, by employing the dual-frequency solutions, microstrip patch antennas are applied to the mobile handsets of the third-generation IMT-2000 system. Two novel microstrip patch antennas with broadband property and miniaturized size have been proposed a ....etc

[:=Read Full Message Here=:]

Abstract

A microstrip fractal antenna has been introduced in the following paper. The iterations of hexagons are placed over one another in such a way that they do not overlap and each and every hexagon is clearly visible. The presented antenna has been fed with 50 probe. The antenna operates at a frequency of 0.6 GHz giving the input return loss of about -13.5 dB. The performance of the antenna has been evaluated using HFSS, V12, from Ansoft. The resulting antenna has a ground plane side each of 7cm. The antenna can find wide variety of appl ....etc

[:=Read Full Message Here=:]

Presented By:
Kulbir Singh1, Vinit Grewal2 and Rajiv Saxena3
1ECED, Thapar University, Patiala, India,
2 National Institute of Technology, Jalandhar, India
3Jay Pee Institute of Engineering and Technology, Raghogarh, Guna , M.P., India

Abstract
Wireless applications, particularly with multiple resonances, put new demands on antennas pertaining to size, gain, efficiency, bandwidth, and more. One promising approach in this regard is to use fractal geometries to find the best distribution of currents within a volume to meet a par ....etc

[:=Read Full Message Here=:]