Investigation of Left-Handed Meta-Atom for Radio Frequency Shielding Application

2018 ◽  
Vol 10 (11) ◽  
pp. 1582-1587 ◽  
Author(s):  
Mohammad Tariqul Islam ◽  
Farhad Bin Ashraf ◽  
Touhidul Alam ◽  
Norbahiah Misran ◽  
Mandeep Singh Jit Singh
Keyword(s):  
Radio Frequency ◽  
Left Handed ◽  
Meta Atom

Multiband left handed biaxial meta atom at microwave frequency

2017 ◽  
Vol 4 (3) ◽  
pp. 035015 ◽  
Author(s):  
Md Mehedi Hasan ◽  
Mohammad Rashed Iqbal Faruque ◽  
Mohammad Tariqul Islam
Keyword(s):  
Microwave Frequency ◽  
Left Handed ◽  
Meta Atom

scholarly journals Compact Left-Handed Meta-Atom for S-, C- and Ku-Band Application

2017 ◽  
Vol 7 (10) ◽  
pp. 1071 ◽  
Author(s):  
Md. Hasan ◽  
Mohammad Faruque ◽  
Mohammad Islam
Keyword(s):  
Left Handed ◽  
Meta Atom ◽  
Ku Band

Composite left-handed meta-atom for tri-band operation

2017 ◽  
Vol 4 (9) ◽  
pp. 095801 ◽  
Author(s):  
Md Mehedi Hasan ◽  
Mohammad Rashed Iqbal Faruque ◽  
Mohammad Tariqul Islam
Keyword(s):  
Left Handed ◽  
Meta Atom

scholarly journals Correction: Md. Mehedi Hasan, et al. Compact Left-Handed Meta-Atom for S-, C- and Ku-Band Application. Appl. Sci. 2017, 7, 1071

2018 ◽  
Vol 8 (1) ◽  
pp. 53
Author(s):  
Md. Hasan ◽  
Mohammad Iqbal Faruque ◽  
Mohammad Islam
Keyword(s):  
Left Handed ◽  
Meta Atom ◽  
Ku Band

scholarly journals A tri-band left-handed meta-atom enabled designed with high effective medium ratio for microwave based applications

2020 ◽  
Vol 17 ◽  
pp. 103032 ◽  
Author(s):  
Md Rashedul Islam ◽  
Md Samsuzzaman ◽  
Norbahiah Misran ◽  
Gan Kok Beng ◽  
Mohammad Tariqul Islam
Keyword(s):  
Effective Medium ◽  
Left Handed ◽  
Meta Atom

An Effective Medium Ratio Obeying Wideband Left-Handed Meta-Atom for Multiband Applications

2017 ◽  
pp. 295-303
Author(s):  
Mohammad Jakir Hossain ◽  
Mohammad Rashed Iqbal Faruque ◽  
Mohammad Tariqul Islam
Keyword(s):  
Effective Medium ◽  
Left Handed ◽  
Meta Atom

Single molecule optical diffraction: A tool for understanding the structure of triple stranded left-hand helical cellulose

1989 ◽  
Vol 47 ◽  
pp. 1024-1025
Author(s):  
George C. Ruben ◽  
William Krakow
Keyword(s):  
Single Molecule ◽  
Helical Structure ◽  
Optical Diffraction ◽  
Maximum Diameter ◽  
Primary Cell Wall ◽  
Cellulose Synthesis ◽  
Left Hand ◽  
Left Handed ◽  
Freeze Dried ◽  
Diffraction Patterns

Tobacco primary cell wall and normal bacterial Acetobacter xylinum cellulose formation produced a 36.8±3Å triple-stranded left-hand helical microfibril in freeze-dried Pt-C replicas and in negatively stained preparations for TEM. As three submicrofibril strands exit the wall of Axylinum , they twist together to form a left-hand helical microfibril. This process is driven by the left-hand helical structure of the submicrofibril and by cellulose synthesis. That is, as the submicrofibril is elongating at the wall, it is also being left-hand twisted and twisted together with two other submicrofibrils. The submicrofibril appears to have the dimensions of a nine (l-4)-ß-D-glucan parallel chain crystalline unit whose long, 23Å, and short, 19Å, diagonals form major and minor left-handed axial surface ridges every 36Å.The computer generated optical diffraction of this model and its corresponding image have been compared. The submicrofibril model was used to construct a microfibril model. This model and corresponding microfibril images have also been optically diffracted and comparedIn this paper we compare two less complex microfibril models. The first model (Fig. 1a) is constructed with cylindrical submicrofibrils. The second model (Fig. 2a) is also constructed with three submicrofibrils but with a single 23 Å diagonal, projecting from a rounded cross section and left-hand helically twisted, with a 36Å repeat, similar to the original model (45°±10° crossover angle). The submicrofibrils cross the microfibril axis at roughly a 45°±10° angle, the same crossover angle observed in microflbril TEM images. These models were constructed so that the maximum diameter of the submicrofibrils was 23Å and the overall microfibril diameters were similar to Pt-C coated image diameters of ∼50Å and not the actual diameter of 36.5Å. The methods for computing optical diffraction patterns have been published before.

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