Report Review - Metasurface Antennas
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Added on 2020-04-01
Report Review - Metasurface Antennas
Added on 2020-04-01
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Report Review Dept of Electrical and Computer Engineering, University of Waterloo, Waterloo, Ontario, Canada2.Thamer AlmoneefDept of Electrical and Computer Engineering, University of Waterloo, Waterloo, Ontario, Canada3.Omar M. RamahiDept of Electrical and Computer Engineering, University of Waterloo, Waterloo, Ontario, Canada. On the Abstract: The Abstract gives a well and very general information about the topic to be discussed in the whole document `` Metasurface Antennas.`` This overview information avails to the researcher with the gratitude to learn and know more about the design, basic concepts and even the application of this Metasurface Antennas technology. Nevertheless, the authors needed to make the abstract more substantial. This can be done by citing some references to help substantiate their work. In the second sentence, the authors needed to include some references to support their statement of how this design is based on the Huygens principles. On the third sentence, the authors were to illustrate how the distance between the two or more adjacent antennas is approximately λ2 and also they needed to give the value of this λ (lambda/ wavelength). So that as they use this value the researchers may know its value from the start. The fourth sentence is very vital to the researchers as it helps the researcher to know the array of the cross resonator which is arranged in the Rodgers substrate and made to operate at 3 GHz, that dimension is given as 8 × 8 but there is no reference to substantiate this information. On the last sentence of the Abstract, the authors did say that this antenna can be designed to operate at a maximum gain but failed to give the actual figure of that maximum gain[ CITATION Moh12 \l 1033 ]. On the introduction The Authors gave a good definition of the metasurface as a two-dimension version of the three dimension metamaterial in which the surface of the material is a distribution of electrically-minor element. The authors also gave the references. However, the authors failed to provide the
Report Review figures of the two dimension of three dimensions of this metasurface antenna[ CITATION Gab11 \l 1033 ]. With the diagram of this Metasurface, the researchers will be able to quickly understand this antenna through visualization of the antenna. The authors clearly gave the two very vital aspects of this antenna that is periodicity and thickness which are smaller than the wavelength. Nonetheless, the authors did not give the value of this wavelength even though they used this wavelength to care with the periodicity and the thickness[ CITATION Enr13 \l 1033 ]. They did not also clarify what is the wavelength for which will leave the researchers with many options of assumptions. Researchers may assume that the wavelength used is for a light wave.This will make this journal doubtable for the researchers as it has gaps to be filled by assumptions. And on the last sentence of the introduction, the authors provided the applications of Metasurface antennas. Some of these applications given in this journal include, used as a detector of microwave radiation, absorbers, and harvesters. In the whole introduction, the authors did not show any mathematical expression of this metasurface antenna. The mathematical expression helps in analysis of any engineering design like this antenna. Are the reasons for performing the design vividly elaborated? (On design methodology). On my opinion, the motivation for this journal needed to be made more simple and clearer. The authors were to demonstrate the concept of the metasurface antenna in the electrical ring resonator. The authors also were to illustrate the periodic arrangement of the array of the metallic symmetric elements which help to create a group of sub wavelength. The best way to do this is to use the diagram with the equations to help do the analysis and also to provide some reference if
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