Amer Shaalan

Amer Shaalan
ALKARKH UNIVERSITY FOR SCIENCE · Criminal Evidence

Professor

About

19
Publications
4,147
Reads
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28
Citations
Citations since 2017
4 Research Items
23 Citations
201720182019202020212022202302468
201720182019202020212022202302468
201720182019202020212022202302468
201720182019202020212022202302468
Additional affiliations
February 2010 - September 2010
Philadelphia University Jordan
Position
  • Researcher
Description
  • contribute with paper in IEEE conference
November 2004 - present
Al Muthanna University
Position
  • Lecturer
Description
  • Teaching Electromagnetism / Fourth grade, High Energy Physics, Antenna
Education
September 1998 - December 2002
Al-Mustansiriya University
Field of study
  • Physics
September 1995 - May 1997
Al-Mustansiriya University
Field of study
  • Physics
September 1990 - July 1994
Al-Mustansiriya University
Field of study
  • Physics

Publications

Publications (19)
Article
Full-text available
Fractal shapes has unusual properties. These unique features will affect antenna parameters when designed in fractal shapes. Two fractal shapes combined together to generate new fractal shape dipole antenna. Seirpinski and modified Koch fractal shapes allow this antenna to operate at too far apart frequencies lies in X and K band. Fractal dimension...
Article
Full-text available
Bandwidth of the operating frequency of an antenna is an important parameter in antenna design. It is strongly related to the performance of data rate. Hence to get more data rates for mobile applications, much higher bandwidths are needed. Frequency bands lies above 6 GHz, characterized by more continuous frequency range than bands below 6 GHz. Th...
Article
Full-text available
Bandwidth of the operating frequency of an antenna is an important parameter in antenna design. It is strongly related to the performance of data rate. Hence to get more data rates for mobile applications, much higher bandwidths are needed. Frequency bands lies above 6 GHz, characterized by more continuous frequency range than bands below 6 GHz. Th...
Article
Full-text available
Size reduction of square patch antenna is proposed using meta-fractal technique. This technique implies adding fractal shape (Peano shape here) to the classical square antenna to reduce its size and then a complementary split ring resonator (CSRR) is slotted on the patch as a defect. The defect enforces the antenna to behave as meta-material in a s...
Article
Full-text available
Fractal Minkowski patch antenna is proposed. Classical complementary split ring resonator (CSRR) is slotted on the patch. For comparison, fractal Hilbert shape split ring resonator also slotted on the patch. These slots make the patch behaves as a left-handed material in certain frequency band. Minkowski fractal antenna has three resonance frequenc...
Article
Full-text available
Negative index of refraction has attracted a great attention in literatures. These materials are artificial structures named metamaterials has characteristics not found in nature. Microstrip antennas covered by metamaterial are very interesting areas of study. In this paper fractal Peano shape antenna is proposed and covered by two layers of modifi...
Article
Full-text available
Advanced materials are artificial structure materials that exhibit properties not found in nature. Material that has a negative refractive index (left-handed materials) is found to get a lot of interest in the literatures. Controlling the geometry of classical material may lead to have a negative refractive index in a certain frequency range. In th...
Article
Full-text available
The main concept of Cross Field Antenna is getting phase shift between electric fields of the two cylinders of the antenna equals to 90 degrees. This is done by connecting a coil to the antenna circuit. The objective of doing this is to get rid of near field region and make far field region starting from antenna surface. Fractal shape antennas have...
Article
Full-text available
Gain enhancement has attracted a great amount of attention in literatures. There were many ways, which were published to improve antenna gain. One of these ways is using Metamaterials. Materials that have negative refractive index are used to achieve this goal. These materials are artificial structures that exhibit characteristics not found in natu...
Article
Full-text available
Metamaterials exhibiting negative index of refraction has attracted a great amount of attention in recent years. These materials are artificial structures that exhibit characteristics not found in nature. Microstrip antennas covered by metamaterial are one of the interesting areas of study. In this paper fractal shape antenna is proposed and covere...
Article
Full-text available
Fractal geometries have been applied to antenna design to make multiband and broadband antennas. In addition, fractal geometries have been used to miniaturize the size of antennas. However miniaturization has been mostly limited to the wire antennas. In this paper, microstrip patch antennas are miniaturized using Sierpinski Carpet fractal geometry...
Conference Paper
The miniaturization for antenna design based on fractal geometry is of great interest in today's wireless communication systems. To this end, the NEC4WIN95VM simulation tool, that is based on moment method has been used to simulate two proposed new designs based on the quadratic Koch model. The obtained simulation results are compared to classical...
Article
Full-text available
Film of PMMA and a variable concentrations of copper sulfate additives were prepared by casting method. The absorptance and transmittance spectra have been recorded for all the deposited films in order to study the optical constants such as, refractive index, extinction coefficient, optical conductivity, real and imaginary parts of dielectric const...
Conference Paper
Full-text available
The use of fractal geometries has significantly impacted many areas of science and engineering; one of which is antenna. Designing antenna using fractal geometries has been shown to improve several antenna features. Moment method based simulation code was applied to perform a detailed parametric study for H-Shape model. The use of this model reduce...
Article
Full-text available
Thin films of pure and cobalt doped ZnO have been prepared on glass substrate using spray pyrolysis technique. Analysis with XRD show that the as prepared film were polycrystalline wurtzite structure and has a prerfereed orientation along (002) direction. Transmittance and Absorptance spectra have been measured in the wavelength range (380-900) nm....
Article
Full-text available
Photonic fractal with self-similar structure ofdielectric medium can strongly l;:,calize the electromagnetic wave energy in the three-dimensional fractal structure. Menger-sponge fractal structures were simulated. The samples have square holes of27, 9 and 3 nun in edge length through the cubic body of81 mm. Three types of Menger-sponge samples with...

Questions

Questions (2)
Question
thanks Doctor for the invitation
Question
I would like to join this group

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