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1D and 2D phase gradient perforated dielectric reflective surfaces at mmWave

Published online by Cambridge University Press:  14 December 2017

Mustafa K. Taher Al-Nuaimi ,
Wei Hong  and
Xiqi Gao
Mustafa K. Taher Al-Nuaimi*
Affiliation:
State Key Laboratory of Millimeter waves, School of Information Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China
Wei Hong
Affiliation:
State Key Laboratory of Millimeter waves, School of Information Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China
Xiqi Gao
Affiliation:
National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, People's Republic of China
*
Corresponding author: M. K. T. Al-Nuaimi Email: [email protected]
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Abstract

This paper presents the design of all dielectric non-absorptive phase gradient reflective surfaces that can be used to manipulate the reflected electromagnetic waves at millimeter-wave regime. Compared with a bare perfect electrical conductor reflector which obeys the classical Snell's law of reflection, the presented design can effectively alter both the shape and level of the backscattered energy and thus radar cross section (RCS) reduction is achieved in the specular direction. One- and two-dimensional phase gradient reflective dielectric surfaces of phase change about 72° across their apertures are designed and their ability to manipulate the reflected waves under normal incidence are investigated both by means of full-wave simulations and experimentally tested for validation. More than 6 dB of specular RCS reduction is achieved from about 66.5–78.2 GHz.

Keywords

ReflectionPhase gradientRadar cross section
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 10 , Issue 4 , May 2018 , pp. 446 - 452
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2017 

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References

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