Numerical Synthesis of Dual-Band Reflectarray Antenna for Optimum Near-Field Radiation

2012 ◽  
Vol 11 ◽  
pp. 760-762 ◽  
Author(s):  
Bai-Qiang You ◽  
Yu-Xi Liu ◽  
Jian-Hua Zhou ◽  
Hsi-Tseng Chou
Keyword(s):  
Near Field ◽  
Dual Band ◽  
Field Radiation ◽  
Reflectarray Antenna ◽  
Numerical Synthesis

scholarly journals A dual-band near-field focused reflectarray antenna for RFID applications at 0.9 and 2.4 GHz

Radio Science ◽  
2011 ◽  
Vol 46 (6) ◽  
Author(s):  
Hsi-Tseng Chou ◽  
Pai-Han Hsueh ◽  
Tso-Ming Hung ◽  
Li-Ruei Kuo ◽  
Hsi-Hsir Chou
Keyword(s):  
Near Field ◽  
Dual Band ◽  
Reflectarray Antenna ◽  
Rfid Applications

Reconstruct the PWM Signal of Switching Power Supplies from the Near Field Radiation

2013 ◽  
Vol 718-720 ◽  
pp. 1792-1796
Author(s):  
Zhong Qun Li ◽  
Kai Xie ◽  
Ying Hao Ye ◽  
Rong Bin Guo ◽  
Xu Fei Wang
Keyword(s):  
Pulse Width Modulation ◽  
Signal Reconstruction ◽  
Near Field ◽  
Buck Converter ◽  
Power Supplies ◽  
Switching Converters ◽  
Switching Power ◽  
Magnetic Components ◽  
Field Radiation ◽  
Switching Power Supplies

A non-contact testing method is proposed for encapsulation treated or insulation coated switching power supplies, which is implemented by reconstructing the pulse width modulation (PWM) signal of switching converters from the near field radiation of magnetic components. The radiation pattern of a buck converter is investigated, and the magnetic field sensing probe and PWM signal reconstruction circuit are also illustrated. The reconstruction testing is carried out on a buck converter; the duty cycle error of the reconstructed PWM signal is less than 0.2%, which validates the proposed method.

A new method to calculate near-field radiation excited by heterogeneous fault rupture

2007 ◽  
Vol 20 (6) ◽  
pp. 597-604
Author(s):  
Xue-feng Shang ◽  
Qi-ming Liu ◽  
Hai-ming Zhang ◽  
Xiao-fei Chen
Keyword(s):  
Near Field ◽  
New Method ◽  
Fault Rupture ◽  
Field Radiation
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