Next Article in Journal
Multi-Source Reliable Multicast Routing with QoS Constraints of NFV in Edge Computing
Previous Article in Journal
RTPO: A Domain Knowledge Base for Robot Task Planning
Open AccessArticle

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

Key Laboratory of Radar Imaging and Microwave Photonics, Ministry of Education, College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
*
Author to whom correspondence should be addressed.
Electronics 2019, 8(10), 1104; https://doi.org/10.3390/electronics8101104
Received: 25 August 2019 / Revised: 26 September 2019 / Accepted: 27 September 2019 / Published: 1 October 2019
(This article belongs to the Section Microelectronics and Optoelectronics)
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. View Full-Text
Keywords: random coding metasurface; polarization conversion metasurface (PCM); ultra-wide band (UWB); radar cross-section (RCS) reduction random coding metasurface; polarization conversion metasurface (PCM); ultra-wide band (UWB); radar cross-section (RCS) reduction
Show Figures

Figure 1

MDPI and ACS Style

Dai, H.; Zhao, Y.; Li, H.; Chen, J.; He, Z.; Qi, W. An Ultra-Wide Band Polarization-Independent Random Coding Metasurface for RCS Reduction. Electronics 2019, 8, 1104.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop