A novel structure based on complementary split-ring resonators (SRRs) is introduced to reduce the mutual coupling between two coplanar microstrip antennas that radiate in same frequency band. The new unit cell consists of SRR inclusions connected by an additional slot. This modification improves rejection response terms bandwidth and suppression. filtering characteristics band-gap are investigated using dispersion analysis. Using structure, it was possible achieve a 10-dB reduction patch...

Single-negative magnetic metamaterials are used in order to reduce mutual coupling between high-profile antennas multiple-input multiple-output systems. The permeability of the developed single-negative inclusions have negative effective response over a specific frequency band. considered here composed broadside coupled split-ring resonators. inserted closely-spaced monopole antenna elements. It is shown that elements can be reduced significantly by incorporating such inclusions. Effective...

This letter presents a novel engineered magnetic superstrate designed to enhance the gain and efficiency of microstrip patch antenna without any substantial increase in profile whole structure (the with superstrate). The modified split ring resonator (MSRR) inclusions are used design superstrate. Numerical full-wave simulations as well analytical models analyze entire radiating system. Considering an example operating within UMTS band, broadside was improved by 3.4 dB 17% when using total...

In this paper, we present initial designs and results of a small-scale prototype vehicle to communication system using light fidelity (Li-Fi) technology, new technology that was developed in the last few years, which still needs more investigations on its sustainability for outdoor vehicular networks. Vehicle is most effective solution has been used order reduce vehicles' accidents. The proposed use Li-Fi paper comprises mainly light-emitting diode (LED) bulbs as means connectivity by...

The propagation characteristics of magneto-quasistatic waves, more commonly, known as magnetostatic waves in a long, metallic rectangular waveguide filled with metamaterial slab are comprehensively investigated. consists split-ring resonators an anisotropic uniaxial medium transversal negative effective permeability. Some analytical relations and numerical validations on the these presented. results include dispersion relations, mode patterns (field distributions) that can be supported by...

A novel technique for mitigating simultaneous switching noise propagation in high-speed printed circuit boards is presented. The proposed concept based on etching complementary split-ring resonators (CSRRs) only one metallic layer of the board. By such topology, electric field between power planes can be suppressed. It shown here that by concentrically cascading CSRRs, an ultrawideband suppression from sub-GHz to 12 GHz achieved. prototype was simulated, fabricated, and tested. Good...

In this paper, impedance matching enhancement of a grounded wearable low-profile loop antenna is investigated using high-impedance surface (HIS) structure. The along with the HIS structure maintained low-profile, making it suitable candidate for healthcare applications. paper starts investigating, both numerically and experimentally, effects several textile parameters on performance antenna. application then demonstrated. Numerical full-wave simulations are presented validated measured...

This research presents an innovative polarization-insensitive metasurface (MS) harvester designed for energy harvesting applications at 5 GHz, capable of operating efficiently over wide reception angles. The proposed MS features a novel wheel-shaped resonator array whose symmetrical structure ensures insensitivity to the polarization incident electromagnetic (EM) waves, enabling efficient absorption and minimizing reflections. Unlike conventional designs, achieves near-unity efficiency,...

This research introduces a compact, self-isolated, 12 × multiple-input multiple-output (MIMO) antenna array designed for 5G mobile applications, operating within the 3.5 GHz band (3.42–3.62 GHz). The consists of two distinct sets six elements—inverted U-shaped and T-shaped structures, each incorporating circular I-shaped strips—arranged symmetrically smartphone chassis. Each element measures 15 5 mm2 (0.17λo 0.06λo), where λo represents free-space wavelength at GHz. These elements function...

In this paper, a novel design for miniaturization of microstrip patch antennas is proposed. The technique based on etching out two Complementary Split-Ring Resonators (CSRRs) from the metallic ground plane beneath non-radiating edges antenna. Numerical simulations are presented antenna with and without CSRRs. proposed cost effective useful antennas. Furthermore, unlike other techniques that rely either trial-and-error, optimization or randomly orienting CSRRs antenna, approach serves as an...

Planar inverted-F antennas (PIFA) are widely used in wireless hand-held devices due to their small-size, moderate bandwidth and radiation patterns. However, the patterns of such degrade when placed very close a conductive flnite ground plane. In this paper, an engineered magnetic superstrate is introduced enhance gain PIFA antennas. The based on broad-side coupled split ring resonator (SRR) inclusions which have high real permeability value at resonance frequency antenna. Numerical full-wave...

This paper presents a customized adaptive cascaded deep learning (ACDL) model for the design and performance prediction of metasurface absorbers. A multi-resonant absorber structure is introduced, with 10 target-driven parameters. The proposed takes advantage cascading several sub-deep neural network (DNN) layers forward noise mitigation capabilities. inherent appearance sparse data dealt in this work by proposing trained data-adaptive selection technique. On basis findings, response quite...

Comprehensive study on the source of electromagnetic radiation from apertures placed in conducting screens and enclosure is presented. Novel technique comprising placement bandgap (EBG) structures immediately around openings presented to suppress surface currents consequently reduce apertures. The effectiveness proposed demonstrated through several detailed parametric studies numerical full-wave simulations quantifying strength fields near far regions aperture. In fact, using EBG structures,...

In this paper, a technique is proposed for enhancing energy harvesting devices. The design capable of charging small power consumption sensors by capturing ambient radio frequency (RF) waves. comprises the use high-profile monopole antenna array with reflector in order to maximize RF received system. Furthermore, prototype system was built, and tested laboratory. compared reference case that uses only single element at both transmitter receiver sides. achieved results show better performance...

In this paper, a dual-band frequency-reconfigurable flexible metamaterial absorber is proposed for wearable applications at microwave regime. The textile unit cell composed of modified configuration the Split-Ring Resonator (SRR) and printed on grounded substrate integrated with tuning varactor. Numerical full-wave simulations are carried out in order to investigate absorption capability from when bending non-bending configurations. Based numerical studies, structure exhibits maintains dual...

In this paper, we propose a wideband polarization diversity multiple-input multiple-output (MIMO) antenna array for 5G smart mobile devices.The proposed MIMO consists of 8-ports dual-polarized L-shaped lines that highly excite radiating slots, where the elements are placed at four-corners compact unit size 75 × 150 mm 2 .The uniqueness structure comes from deployment octagon-shaped resonant slots within metallic ground plane, i.e., octagonal-slots etched bottom (ground) layer main board.Due...

A novel concept for mitigating switching noise propagation in high-speed printed circuit boards is proposed. By etching complementary split-ring resonators (CSRRs) on only one metallic layer of the board, electric field between power planes can be suppressed. This behaviour contrast to resonator that suppresses magnetic field. Furthermore, by cascading CSRRs, concentrically, a wide suppression covering frequency band from sub-gigahertz 12 GHz achieved. The effect new power-plane topology...

This paper presents a customized adaptive cascaded deep learning (ACDL) model for the design and performance prediction of metasurface absorbers. A multi-resonant absorber structure is introduced, with 10 target-driven parameters. The proposed takes advantage cascading several sub-deep neural network (DNN) layers forward noise mitigation capability. inherent appearance sparse data completely dealt in this work by proposing trained selection technique. On basis findings, response quite fast...