Design of electromagnetic wave absorber by use of metal wire array sheet

2011 ◽  
Author(s):  
Shinichiro Yamamoto ◽  
Daisuke Ishihara ◽  
Kenichi Hatakeyama
Keyword(s):  
Electromagnetic Wave ◽  
Wire Array ◽  
Metal Wire

Plasmonic waveguiding in a hexagonally ordered metal wire array

2010 ◽  
Vol 35 (23) ◽  
pp. 3901 ◽  
Author(s):  
Zhong-Xiang Zhang ◽  
Ming-Lie Hu ◽  
Kam Tai Chan ◽  
Ching-Yue Wang
Keyword(s):  
Wire Array ◽  
Metal Wire ◽  
Hexagonally Ordered

scholarly journals Super-resolution focusing of time reversal electromagnetic waves in metal wire array medium

2013 ◽  
Vol 62 (11) ◽  
pp. 114101
Author(s):  
Zhou Hong-Cheng ◽  
Wang Bing-Zhong ◽  
Ding Shuai ◽  
Ou Hai-Yan
Keyword(s):  
Time Reversal ◽  
Electromagnetic Waves ◽  
Wire Array ◽  
Super Resolution ◽  
Metal Wire

scholarly journals Research on the focusing mechanism of one dimensional time reversal EM wave in sub-wavelength metal wire array

2012 ◽  
Vol 61 (9) ◽  
pp. 098401
Author(s):  
Zhang Zhi-Min ◽  
Wang Bing-Zhong ◽  
Ge Guang-Ding ◽  
Liang Mu-Sheng ◽  
Ding Shuai
Keyword(s):  
Time Reversal ◽  
Wire Array ◽  
Metal Wire ◽  
One Dimensional ◽  
Sub Wavelength

scholarly journals Linearly Polarized High-Purity Gaussian Beam Shaping and Coupling for 330 GHz/500 MHz DNP-NMR Application

Electronics ◽  
2021 ◽  
Vol 10 (13) ◽  
pp. 1508
Author(s):  
Xingchen Yang ◽  
Chaohai Du ◽  
Ziwen Zhang ◽  
Juanfeng Zhu ◽  
Tiejun Huang ◽  
...  
Keyword(s):  
Electromagnetic Wave ◽  
Gaussian Beam ◽  
Directional Coupler ◽  
Wire Array ◽  
Transmission System ◽  
Mode Converter ◽  
Wave Power ◽  
Terahertz Waves ◽  
Wave Source ◽  
Linearly Polarized

Terahertz waves generated by vacuum electron devices have been successfully applied in dynamic nuclear polarization enhanced nuclear magnetic resonance (DNP-NMR) technology to significantly enhance the sensitivity of high-field NMR. To reduce the magnetic field interference, the high-power terahertz wave source and the NMR spectrometer need to be separated by a few meters apart. Corrugated horns and directional couplers are key components for shaping high linearly polarized terahertz Gaussian beam and accurately coupling electromagnetic power in the transmission system. In this paper, a corrugated TE11-HE11 mode converter and a three-port directional coupler realized by its inner cylindrical wire array are proposed for a 330 GHz/500 MHz DNP-NMR system. The output mode of the mode converter presents a characteristic of highly linear polarization, which is 98.8% at 330 GHz for subsequent low loss transmission. The designed three-port directional coupler can produce approximately −33 dB electromagnetic wave power on port 3 in the frequency range between 300–360 GHz stably, which can be used to measure the electromagnetic wave power of the transmission line in real-time. The designed mode converter and direction coupler can be installed and replaced easily in the corrugated waveguide transmission system.

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