Scatterer Surface Design for Wave Scattering Application

In this paper, radio wave scattering is considered and an optimal scatterer surface is realized. For this purpose, an ultrawideband and high-efficiency polarization converter unit cell is proposed. Here, the proposed polarization converter unit cell and its mirror are combined to provide 180° phase...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2019-02, Vol.67 (2), p.1202-1211
Main Authors: Samadi, Fereshteh, Akbari, Mohammad, Chaharmir, Mohammad Reza, Sebak, Abdelrazik
Format: Article
Language:English
Subjects:
Algorithms
Antennas
Bandwidth
Computer simulation
Converters
Frequencies
Mirrors
Optimization
Polarization
Polarization conversion
Radar cross sections
Radio waves
radio-wave scattering
Reduction
scatterer structure
Scattering
Substrates
Ultra wideband technology
ultrawideband
Ultrawideband radar
Unit cell
Wave attenuation
Wave scattering
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper, radio wave scattering is considered and an optimal scatterer surface is realized. For this purpose, an ultrawideband and high-efficiency polarization converter unit cell is proposed. Here, the proposed polarization converter unit cell and its mirror are combined to provide 180° phase difference for scattering purposes. The desired combination of unit cells which produces uniform scattering pattern and maximum wave attenuation achieved employing group search optimization (GSO) algorithm. For the problem at hand, the GSO optimization algorithm is presented in bilevel format including master and slave levels. Simulation and experimental results showed that the 10 dB bandwidth of normalized radar cross section (RCS) reduction is achieved in ultrawideband ranging from 5.5 to 20.51 GHz with a fractional bandwidth of 115%, assuring a favorable performance of the proposed method. In addition, a wide-angle bistatic RCS reduction over a wide frequency band is attained.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2018.2883569