A Magnetic-Controlled Detection System for Radar Absorbing Coatings

2013 ◽  
Vol 718-720 ◽  
pp. 393-398 ◽  
Author(s):  
Jian Hua Zhou ◽  
Li Xia Huo ◽  
Wei Wen Li ◽  
Bai Qiang You ◽  
Yan Long Li ◽  
...  
Keyword(s):  
Reflection Coefficient ◽  
Rectangular Waveguide ◽  
Detection System ◽  
Solenoid Coil ◽  
Test Fixture ◽  
Field Patterns ◽  
Ku Band

A magnetic-controlled detection system, with a rectangular solenoid coil in a waveguide test fixture, is proposed for radar absorbing coatings. By applying Ku-band rectangular waveguide, the field patterns at different positions, the reflection coefficient S11 and its variation of several coating samples are simulated and measured under current loaded from 0 to 1.0 A. The results show that this detection system is repeatable and stable, and also reliable with the error of less than 10%.

Study on Dielectric and Magnetic Properties of MWCNTs/Polyester Composites

2015 ◽  
Vol 815 ◽  
pp. 188-192
Author(s):  
Y.S. Lee ◽  
F. Malek ◽  
E.M. Cheng ◽  
Wei Wen Liu ◽  
Kok Yeow You ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Magnetic Properties ◽  
Dielectric Properties ◽  
Rectangular Waveguide ◽  
The Real ◽  
Multi Walled Carbon Nanotubes ◽  
Polyester Composites ◽  
Walled Carbon Nanotubes ◽  
Ku Band ◽  
Dielectric Conductivity

This paper is to study the dielectric properties, magnetic properties, and dielectric conductivity of Multi-walled carbon nanotubes (MWCNTs) and polyester (PE) composites. The composites with different amount of MWCNTs (5-15%) have been studied in the Ku-Band range (12.4-18 GHz). The rectangular waveguide (WR-62) was used to measure the dielectric properties and magnetic properties of the samples. The results show the dielectric properties and conductivity of MWCNTs/PE composites is increasing with the MWCNTs filler increases. The real part of dielectric properties values increase from 5.5 to 26.6 with increasing the MWCNTs loading from 5 % to 15 %. The increasing of MWCNTs filler in the MWCNTs/PE composites does not effects on magnetic properties, the real part and imaginary part of magnetic properties are approximate to 1 and 0. The highest conductivity of 15 % MWCNTs loading is reach to 11.02 (S/m) at 18 GHz. Keywords: composites, dielectric properties, magnetic properties, conductivity

scholarly journals LOW REFLECTION COEFFICIENT KU-BAND ANTENNA ARRAY FOR FMCW RADAR APPLICATION

2020 ◽  
Vol 102 ◽  
pp. 127-137
Author(s):  
Laxmikant Minz ◽  
Hyunseong Kang ◽  
Seong-Ook Park
Keyword(s):  
Reflection Coefficient ◽  
Antenna Array ◽  
Fmcw Radar ◽  
Ku Band
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