Relationship between Manufacturing Process and Absorption Characteristics of Electromagnetic Wave Absorbers Blended with Agricultural By-products

2020 ◽  
Vol 140 (11) ◽  
pp. 540-541
Author(s):  
Shinichiro Yamamoto ◽  
Toshihiko Kaneiwa ◽  
Hiroshi Iizuka
Keyword(s):  
Electromagnetic Wave ◽  
Manufacturing Process ◽  
By Products ◽  
Absorption Characteristics

scholarly journals Magnetic and Electromagnetic Wave Absorption Characteristics of BaFe11Ti0.5Zn0.5O19 in X Band

2019 ◽  
Vol 553 ◽  
pp. 012001
Author(s):  
Dedi ◽  
Novrita Idayanti ◽  
Tony Kristiantoro ◽  
Nanang Sudrajat ◽  
Arighi Gustinova ◽  
...  
Keyword(s):  
Electromagnetic Wave ◽  
Electromagnetic Wave Absorption ◽  
Wave Absorption ◽  
X Band ◽  
Absorption Characteristics

Influence of Zn dispersion in SiC on electromagnetic wave absorption characteristics

2018 ◽  
Vol 738 ◽  
pp. 448-460 ◽  
Author(s):  
Samarjit Singh ◽  
Sankalp Shukla ◽  
Abhishek Kumar ◽  
Dharmendra Singh
Keyword(s):  
Electromagnetic Wave ◽  
Electromagnetic Wave Absorption ◽  
Wave Absorption ◽  
Absorption Characteristics

171 Electromagnetic Wave Absorption and Shielding of Plastic Sheets with Agricultural By-products

2014 ◽  
Vol 2014.49 (0) ◽  
pp. 139-140
Author(s):  
Takazumi ISHIKAWA ◽  
Toshihiko KANEIWA ◽  
Takeshi TAKAHASI ◽  
Hiroshi IIZUKA
Keyword(s):  
Electromagnetic Wave ◽  
Electromagnetic Wave Absorption ◽  
Wave Absorption ◽  
By Products

Grain-size dependence of absorption characteristics of the electromagnetic wave absorbers of ferrite-SiO2 composites

2004 ◽  
Vol 146 (4) ◽  
pp. 1-9 ◽  
Author(s):  
Hiroki Kusunoki ◽  
Takatoshi Kondo ◽  
Kiyohiro Hiraki ◽  
Kazushi Takada ◽  
Shinzo Yoshikado
Keyword(s):  
Grain Size ◽  
Electromagnetic Wave ◽  
Size Dependence ◽  
Absorption Characteristics

Two-layered electromagnetic wave-absorbing E-glass/epoxy plain weave composites containing carbon nanofibers and NiFe particles

2011 ◽  
Vol 45 (26) ◽  
pp. 2773-2781 ◽  
Author(s):  
Ki-Yeon Park ◽  
Jae-Hung Han ◽  
Jin-Bong Kim ◽  
Sang-Kwan Lee
Keyword(s):  
Electromagnetic Wave ◽  
Carbon Nanofibers ◽  
Performance Evaluations ◽  
Experimental Performance ◽  
Plain Weave ◽  
X Band ◽  
Parametric Studies ◽  
Lossy Materials ◽  
Absorption Characteristics ◽  
Ku Band

Two-layered radar-absorbing structures (RASs) were investigated for the broadband absorbing characteristics for the X-band (8.2–12.4 GHz) and Ku-band (12.0–18.0 GHz). E-glass/epoxy plain weave composites containing carbon nanofibers (CNFs) and submicron NiFe particles were fabricated and their complex permittivities and permeabilities measured in the range 2–18 GHz. The surface and absorbing layers of two-layered RASs consisted of the low and high lossy materials, respectively. Six kinds of two-layered RASs were designed through the parametric studies. The three kinds of specimens with wide absorption characteristics were selected for the experimental performance evaluations, and their results showed very broad 10 dB absorbing bandwidths of 8.9–9.7 GHz with thicknesses 3.15–3.43 mm.

Effect of Sendust Particle Size on Absorption Characteristics of Composite Electromagnetic Wave Absorber

2009 ◽  
Vol 421-422 ◽  
pp. 451-454
Author(s):  
Kenji Sakai ◽  
Yoichi Wada ◽  
Yuuki Sato ◽  
Shinzo Yoshikado
Keyword(s):  
Particle Size ◽  
Electromagnetic Wave ◽  
Return Loss ◽  
Single Layer ◽  
Complex Permeability ◽  
Wave Power ◽  
Flexible Design ◽  
Frequency Range ◽  
Polystyrene Resin ◽  
Absorption Characteristics

The effects of the particle size of sendust, which is an alloy of Al 5%, Si 10%, and Fe 85%, on the absorption characteristics of composite electromagnetic wave absorbers made of polystyrene resin and sendust were investigated in the frequency range from 1 to 40 GHz. The size of sendust particles was varied between approximately 5 and 20 m. A metal-backed single-layer absorber made of 20 m sendust particles absorbed more than 99% of electromagnetic wave power at frequencies above 20 GHz. Meanwhile, a composite made of 5 m particles exhibited a return loss of less than −20 dB in the frequency range of not only several GHz but also above 30 GHz. In addition, the relative complex permeability r* was shown to be controlled by adjusting the particle size of sendust, and an electromagnetic wave absorber with a flexible design was proposed.

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