scholarly journals Ultra-wide Band, Polarization-Independent, Omnidirectional Absorbers

2012 ◽  
Author(s):  
G. D’Aguanno ◽  
N. Mattiucci ◽  
N. Aközbek ◽  
M. J. Bloemer
Keyword(s):  
Wide Band ◽  
Ultra Wide Band ◽  
Polarization Independent

scholarly journals An Ultra-Wide Band Polarization-Independent Random Coding Metasurface for RCS Reduction

Electronics ◽  
2019 ◽  
Vol 8 (10) ◽  
pp. 1104 ◽  
Author(s):  
Dai ◽  
Zhao ◽  
Li ◽  
Chen ◽  
He ◽  
...  
Keyword(s):  
Cross Section ◽  
Linear Polarization ◽  
Rotation Angle ◽  
Wide Band ◽  
Experimental Results ◽  
Ultra Wide Band ◽  
Polarization Conversion ◽  
Maximum Reduction ◽  
Independent Property ◽  
Polarization Independent

In this paper, a novel ultra-wide band (UWB) random 3-bit coding metasurface with polarization independence has been designed to realize radar cross-section (RCS) reduction. The proposed structure consists of polarization conversion metasurfaces (PCMs), which possess the capability of rotating linear polarization waves to their orthogonal ones in an UWB. The polarization-independent property can be attributed to the random rotation angle of each constituting unit. Due to the randomness of 3-bit coding and rotation angle of each element, the divergence of the reflected beam is greatly improved. In addition, the effect of RCS reduction with respect to the unit period length and the unit position are also discussed. Finally, a prototype is fabricated and measured to validate the simulation. The experimental results demonstrate that an ultra-wide band RCS reduction over 10 dB, ranging from 18.3–42.2 GHz, can be attained by the proposed coding metasurface and the maximum reduction is 28.7 dB.

Activity Recognition using Ultra Wide Band Range-Time Scan

2021 ◽  
Author(s):  
Arijit Chowdhury ◽  
Taniya Das ◽  
Smriti Rani ◽  
Anwesha Khasnobish ◽  
Tapas Chakravarty
Keyword(s):  
Activity Recognition ◽  
Wide Band ◽  
Ultra Wide Band ◽  
Time Scan

Ultra-Wide-Band Wireless Sensor Network for Transmission of Streaming Data

2018 ◽  
Vol 7 (1) ◽  
pp. 91-102
Author(s):  
Yu.V. Andreyev ◽  
◽  
L.V. Kuzmin ◽  
M.G. Popov ◽  
A.I. Ryshov ◽  
...  
Keyword(s):  
Wireless Sensor Network ◽  
Sensor Network ◽  
Wide Band ◽  
Streaming Data ◽  
Wireless Sensor ◽  
Ultra Wide Band
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