Metamaterial absorber (MMA) is now attracting significant interest due to its attractive applications, such as thermal detection, sound absorption, detection for explosive, military radar, wavelength detector, underwater and various sensor applications that are the vital part of internet things. This article proposes a modified square split ring resonator MMA Ku-band sensing application, where metamaterial structure designed on FR-4 substrate material with dielectric constant 4.3 loss...

Abstract In this article, a novel shaped metamaterial sensor is presented for the recognition of various oils, fluids, and chemicals using microwave frequency. The performance designed structure has been studied both theoretically experimentally, it works well. A new sample holder convenient operation created located just behind structure. results study performed better than those prior liquids sensing studies. Various designs were explored Genetic Algorithm (GA), embedded in Computer...

Abstract Broadband absorbers are required for solar energy harvesting because they efficiently absorb the incident photon in wide-ranging spectrum. To ensure high absorption of photons, metamaterial (MMAs) have been a growing area interest recent years. In this article, an MMA is proposed using metal–insulator–metal (MIM) structure (Ni–SiO 2 –Ni) that shows near-unity broadband wavelengths from 300 to 1600 nm, with 95.77% average and peak 99.999% at 772.82 nm. The polarization insensitive as...

Metamaterial absorbers are very attractive due to their significant absorption behavior at optical wavelengths, which can be implemented for energy harvesting, plasmonic sensors, imaging, modulators, photovoltaic detectors, etc. This paper presents a numerical study of an ultra-wide-band double square ring (DSR) metamaterial absorber (MMA) the complete visible wavelength region, is designed with three-layer (tungsten-silicon dioxide-tungsten) substrate material. Due symmetricity,...

The visible and infrared wavelengths are the most frequently used electromagnetic (EM) waves in frequency spectrum; able to penetrate atmosphere reach Earth’s surface. These have attracted much attention solar energy harvesting; thermography; imaging applications for detection of electrical failures; faults; or thermal leakage hot spots inspection tapped live energized components. This paper presents a numerical analysis compact cubic cross-shaped four-layer metamaterial absorber (MA)...

In this article, a symmetric split ring resonator (SRR) based metamaterial (MTM) is presented that exhibits three resonances of transmission coefficient (S

In this paper, a square enclosed split-maze shaped metamaterial absorber is proposed for X and Ku band wireless applications. Two metal enclosures were introduced around the structure to make it rotational symmetric thus insensitive cross-polarization. The has shown maximum absorptions at 9.33 GHz, 12.83 13.86 15.61 GHz with single negative value of permittivity. incident angle applied EM waves normal oblique incidence up 180 degrees. addition, was proved co- & cross-polarization due patch....

Abstract In this paper, a tuned metamaterial (MTM) consisting of symmetric split ring resonator is presented that exhibits epsilon negative (ENG), near zero permeability and refractive index properties for multiband microwave applications. The proposed constituted on Rogers (RT-5880) substrate with 1.57 mm thickness the electrical dimension 0.14λ × 0.14λ, where wavelength, λ calculated at 4.2 GHz. resonating patch subdivided into four equal similar quartiles two interconnecting rings in each...

In this research paper, the sensing capabilities of a tri circle split ring resonator shaped metamaterial is shown within X-band frequency range for detection various oil samples both theoretically and experimentally. Mathematical modelling was used to analyze sensor efficiency samples. A new sample holder has been made proposed structure, it showed significant performance. The simulated measured transmission coefficient revealed in study monitoring shift resonance sensitivity different...

In this research paper, an inverse double V loaded complementary square split ring resonator based negative (DNG) metamaterial has been developed and examined numerically experimentally. The electromagnetic (EM) properties of the proposed V-structure were calculated using computer simulation technology (CST-2019) finite integration technique (FIT). designed provides three resonance frequencies are 2.86, 5, 8.30 GHz, covering S-, C-, X-bands. total size recommended unit cell is 8 [Formula:...

A couple ring enclosed circular geometric resonator (CRECGR) based dual-band polarization insensitive metamaterial (MM) with high effective medium ratio (EMR), and excellent absorptance is proposed in this study, which can be utilized as a sensor absorber the 5G sub-6 GHz frequency range. geometry-based unique patch has been introduced unit cell to achieve properties absorption for spectrum. The distinctive feature of CRECGR its simple structure EMR 11.13, up 180°, epsilon negative (ENG)...

In this work, CaxZn(0.90-x)Ni0.10Fe2O4 nanopowder-based new flexible microwave substrates are prepared using the sol–gel method for metamaterial applications. Three different x values chosen as = 25, 50, 75 and termed Ca25, Ca50, Ca75 respectively. The structural morphology of synthesized materials investigated with XRD FESEM analysis. dielectric properties were also determined obtained constant (εr) loss tangents (Tδ) ranges from 3.25 to 4.25 εr 0.0025 0.0065 Tδ addition, magnetic...

This study has investigated the impact of inverse G-like shape resonators that exhibited epsilon negative (ENG) and near-zero refractive index (NZI) properties for multi-band wireless communications applications. The electrical measurement structure is 0.118λ × 0.021 λ, which calculated at 3.94 GHz. FR-4 used as a substrate layer, resonator designed on it. manifested in ENG NZI characteristics within frequency range 3.8-4.17, 7.68-8.54, 10.67-11.36 GHz, 4.07-4.15 8.29-8.37 respectively. also...

The main objective of this paper is to design and implement a remote sensing based home automation system using Arduino Uno Kit as controller for scheme. proposed has two operational scenarios. first scenario control the devices from anywhere by smart phone with sensors internet technologies controlling user, it named manual-scenario. second monitor an automatic management between Kit', called scenario. To make easy deal user Matlab GUI platform designed good interface system. shown be...

This paper presents design of fractal regular slots patch antennas for Ultra-wideband (UWB) applications. The proposed reference antenna is a monopole type rectangular radiator mounted on dielectric substrate and fed by microstrip feed line 50 Ω characteristic impedance. Four different configurations have been inserted randomly to the modify characteristics decrease area. These new four are investigated in terms parameters including impedance band-width, radiation patterns, gain, group delay...

This paper presents a comparative study for designing and modeling patch antenna with different electromagnetic computer aided design (CAD) approaches as CST, HFSS, FEKO IE3D. The is an insert feed type copper Roger RT/duroid substrate case study. Wi-Fi operating frequency of 2.45 GHz chosen the resonator design. effectiveness limitations each modeled approach this are discussed in term performance analysis.

This paper presents a comparative study for designing and modeling patch antenna with different electromagnetic computer aided design (CAD) approaches as CST, HFSS, FEKO. The is an insert feed type copper Roger RT/duroid substrate case study. Wi-Fi operating frequency of 2.45 GHz chosen the resonator design. effectiveness limitations each modeled approach this are discussed in term performance analysis.

This paper presents a design concept for realtime home automation system based on Very High Speed Description Language (VHDL) used programming microcontrollers boards as field-programmable gate array (FPGA). The proposed has two operational modes. first one is denoted manual mode in which the user can monitor and control appliances from any where over world using phone calling. second referred to self- automated that makes be monitoring controlling different household automatically response...