Quad-Band Polarization-Insensitive Square Split-Ring Resonator (SSRR) with an Inner Jerusalem Cross Metamaterial Absorber for Ku- and K-Band Sensing Applications

Abstract

The development of metamaterial absorbers has become attractive for various fields of application, such as sensing, detectors, wireless communication, antenna design, emitters, spatial light modulators, etc. Multiband absorbers with polarization insensitivity have drawn significant attention in microwave absorption and sensing research. In this paper, we propose a quad-band polarization-insensitive metamaterial absorber (MMA) for Ku- and K-band applications. The proposed patch comprises two square split-ring resonators (SSRR), four microstrip lines, and an inner Jerusalem cross to generate four corresponding resonances at 12.62 GHz,14.12 GHz, 17.53 GHz, and 19.91 GHz with 97%, 99.51%, 99%, and 99.5% absorption, respectively. The complex values of permittivity, permeability, refractive index, and impedance of MMA were extracted and discussed. The absorption mechanism of the designed MMA was explored by impedance matching, equivalent circuit model, as well as magnetic field and electric field analysis. The overall patch has a rotational-symmetrical structure, which plays a crucial role in acquiring the polarization-insensitive property. The design also shows stable absorption for both transverse electric (TE) and transverse magnetic (TM) modes. Its near-unity absorption and excellent sensing performance make it a potential candidate for sensing applications.

Metamaterial Based Ku-Band Antenna for Low Earth Orbit Nanosatellite Payload System

“…The metamaterial property like relative permittivity (ε r ) and permeability (µ r ) has been calculated from scattering parameters by using Equations (1) and (2) [ 25 , 26 , 27 ]. …”

Metamaterials and Their Application in the Performance Enhancement of Reconfigurable Antennas: A Review

“…In [ 167 ], a quad-band metamaterial absorber is presented for Ku and K band sensing applications. The presented absorber contains an SSRR and operates over 12.62 GHz, 14.12 GHz, 17.53 GHz, and 19.91 GHz with 97%, 99.51%, 99%, and 99.5% absorption, respectively.…”

Triple-Band Square Split-Ring Resonator Metamaterial Absorber Design with High Effective Medium Ratio for 5G Sub-6 GHz Applications

“…The metamaterial is a sub-wavelength artificial material that exhibits unusual electromagnetic (EM) behavior, such as negative permittivity or permeability and negative or positive refractive index [ 1 ]. These properties make metamaterial-based microwave devices extremely popular for various applications such as energy harvesters [ 2 ], filters [ 3 ], sensors [ 4 , 5 , 6 , 7 ], polarization converters [ 8 ], invisible clocks [ 9 ], antenna design [ 10 , 11 , 12 , 13 , 14 , 15 ], SAR reduction [ 16 ], absorber [ 17 ], and photonic devices [ 18 , 19 , 20 , 21 ]. Metamaterial also significantly enables 5G wireless communication, which will be widely used for producing various 5G devices [ 22 ].…”