scholarly journals MODELING OF A KU-BAND RECTANGULAR FERRITE-LOADED WAVEGUIDE BASED ON LEFT-HANDED METAMATERIAL

2016 ◽  
Vol 51 ◽  
pp. 71-81
Author(s):  
Junfeng Yao ◽  
Fan Yang ◽  
Chunli Li ◽  
Degang Gan ◽  
Bing Gao ◽  
...  
Keyword(s):  
Left Handed ◽  
Ku Band

scholarly journals Low Loss Transmission Circular Polarizer for KU Band Application

2018 ◽  
Vol 1 (1) ◽  
pp. 28-33
Author(s):  
Farman Ali Mangi
Keyword(s):  
Circular Polarization ◽  
Transmission Loss ◽  
Low Loss ◽  
New Techniques ◽  
Resonant Frequencies ◽  
Circular Polarizer ◽  
Left Handed ◽  
Distinct Frequency ◽  
The Right ◽  
Ku Band

Low loss transmission circular polarizer is proposed for Ku band applications. The designed structure consists of two closely cross metallic strips which are based on FSS for 15.25 GHz and 15.28 GHz applications. The right hand circular polarization (RHCP) and left handed circular polarization (LHCP) are obtained at 15.25 GHz and at 15.28 GHz. The transmission loss through polarizer is important issue for high frequency applications. Due to transmission loss, new techniques are required to reduce the transmission loss of transmitted wave and achieve perfect circular polarization. Meanwhile, low loss transmission has been achieved by using dual layer of strips to obtain perfect circular polarization at certain mentioned resonant frequencies. Theoretically, it is found that the outgoing waves through polarizer are perfect circular polarization at the distinct frequency ranges.

scholarly journals Left-handed Circular-Shaped Compact Metamaterial for X- and Ku-Band applications

2020 ◽  
Vol 1529 ◽  
pp. 052021
Author(s):  
Tayaallen Ramachandran ◽  
Mohammad Rashed Iqbal Faruque ◽  
Mohammad Tariqul Islam
Keyword(s):  
Left Handed ◽  
Ku Band

scholarly journals Composite right/left‐handed based compact and high gain leaky‐wave antenna using complementary spiral resonator on HMSIW for Ku band applications

2018 ◽  
Vol 12 (8) ◽  
pp. 1310-1315 ◽  
Author(s):  
Anirban Sarkar ◽  
Moitreya Adhikary ◽  
Abhishek Sharma ◽  
Animesh Biswas ◽  
Mohammed Jaleel Akhtar ◽  
...  
Keyword(s):  
High Gain ◽  
Leaky Wave ◽  
Left Handed ◽  
Leaky Wave Antenna ◽  
Wave Antenna ◽  
Ku Band

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

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 Composite circular split ring resonator (CSRR)-based left-handed metamaterial for C- and Ku-band application

2019 ◽  
Vol 14 ◽  
pp. 102435 ◽  
Author(s):  
Tayaallen Ramachandran ◽  
Mohammad Rashed Iqbal Faruque ◽  
Eistiak Ahamed
Keyword(s):  
Ring Resonator ◽  
Split Ring Resonator ◽  
Split Ring ◽  
Left Handed ◽  
Ku Band

Left-handed compact multi-band circular metamaterial for S-, C- and Ku-band applications

2021 ◽  
Vol 42 ◽  
pp. 1374-1381
Author(s):  
Tayaallen Ramachandran ◽  
Mohammad Rashed Iqbal Faruque ◽  
Sabirin Abdullah ◽  
Mohammad Tariqul Islam ◽  
Muhammad Roszaini Roslan
Keyword(s):  
Left Handed ◽  
Ku Band ◽  
Multi Band

A novel Ku band left-handed media antenna radome

2009 ◽  
Vol 51 (4) ◽  
pp. 1043-1046 ◽  
Author(s):  
Wei-Wei Wu ◽  
Jing-Jian Huang ◽  
Nai-Chang Yuan
Keyword(s):  
Left Handed ◽  
Ku Band

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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