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A novel polarization-insensitive metasurface with angular stability for ultra-broadband (from 7 to 12 GHz) backscatter radar cross section (RCS) reduction is investigated. The proposed metasurface is composed of carefully arranged unit cells with spatially varied dimension, which can diffuse reflection uniformly and avoid the reflection in the specular direction. A proposed metasurface sample is fabricated...
Two types of cross polarization converters (CPCs) that can simultaneously work at several wavelengths in the reflection mode in near infrared spectrum range are proposed. The first type (type I) is constructed of an L-shaped perforated silver layer (top layer) printed on a dielectric material backed by a gold ground plane, which can work at three frequencies due to the excitation of three different...
The techniques in the parameter retrieval procedure based on Nicolson-Ross-Weir (NRW) approach are discussed for asymmetric composite right/left-handed transmission line (CRLH TL). A 10mm-long microstrip transmission line is calculated by the revised method for validation and comparison. An improved lumped parameter extraction in equivalent circuit modeling is proposed for unbalanced CRLH TL. The...
In this paper, novel single-layer left-handed material, consisting of split-square LC resonator (SSLC) coupling with modified H-shaped structure, is proposed. The related electromagnetic characteristics are studied by retrieving constitutive parameters from the simulated scattering parameters. Numerical results show that the negative permeability band of SSLC is relatively broad. The negative refraction...
Electromagnetic band-gap (EBG) structures can serve in the reduction of mutual coupling by using their capability of suppressing surface waves propagation in a given frequency range. In this paper, a dual layer uni-planar compact EBG (UC-EBG) structure is analyzed and its dispersion diagram is extracted using the commercial finite element full wave solver High Frequency Structure Simulation (HFSS)...
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