Proposed in this paper is the design of an innovative and compact antenna array which based on four radiating elements for multi-input multi-output (MIMO) applications used 5G communication systems. The are fractal curves excited using open-circuited feedline through a coplanar waveguide (CPW). electromagnetically coupled to inside edge element. array's impedance bandwidth enhanced by inserting ground structure composed low–high-low between elements. low-impedance section staircase that...

This paper presents a novel metasurface antenna whose radiation characteristics can be remotely controlled by optical means using PIN photodiodes. The proposed reconfigurable is implemented single radiating element to minimize the size and complexity. shown exhibit large impedance bandwidth capable of energy in specified direction. consists standard rectangular patch on which embedded an H-tree shaped fractal slot order 3. used effectively reduce physical 75 % enhance its bandwidth. A layer...

In this paper, a reconfigurable Multiple-Input Multiple-Output (MIMO) antenna array is presented for 5G portable devices. The proposed consists of four radiating elements and an Electromagnetic Band Gap (EBG) structure. Planar monopole are employed in the with Coplanar Waveguide Ports (CWPs). Each CWP grounded on one side to reflecting L-shaped structure that has effect improving antenna's directivity. It shown by inductively connecting Minkowski fractal 1 <sup...

Summary This paper presents a design of an ultra‐wideband (UWB) cylindrical metamaterial (MTM) antenna for radio frequency (RF) energy harvesting to suit the fields Internet Things (IoT) applications. The patch circuitry is based on 3×5 Hilbert‐shaped MTM unit cells array enhance bandwidth. While, ground plane defected with electromagnetic band gap structure gain. mounted polytetrafluoroethylene substrate outer diameter 15 mm and length 32 1 in thickness. relative permittivity 2.04, loss...

Abstract This paper discusses the design and fabrication of a low-profile Hilbert-shaped metamaterial (MTM) array-based antenna, forming rectangular patch with partial ground plane backing; rest is slotted traces for RF energy harvesting. The antenna mounted on 28 mm × 32 indium nickel oxide polymerized palm fiber (INP) substrate compared to identical one based FR4 substrate. two prototypes are printed silver nanoparticles. Numerical experimental tests applied performance in terms S 11...

A novel antenna structure is constructed from cascading multi-stage metamaterial (MTM) unit cells-based printed monopole for 5G mobile communication networks. The proposed a conductive trace that fetches four MTM cells through T-Resonators (TR) structures. Such combination introduced to enhance the gain-bandwidth products at sub-6GHz bands after exiting with coplanar waveguide (CPW) feed. circuitry fabricated by etching copper layer mounted on Taconic RF-43 substrate. Therefore, occupies an...

A novel cylindrical antenna of a miniaturized printed circuitry is invented for Microwave Radiology Imaging (MRI) applications. Folded metamaterial structures based Frequency Selective Surface (FSS) on profile conducted in the design methodology. The combination MRI systems with Ultra-Wide Band (UWB) radars improving functional diagnosis and imaging process has been proposed recently. Moreover, call directive beam as much narrow about 5 dBi fixed direction toward broadside over entire...

In this study, an investigation is conducted to realise the possibility of organic materials use in radio frequency (RF) electronics for RF-energy harvesting. Iraqi palm tree remnants mixed with nickel oxide nanoparticles hosted polyethylene, INP substrates, proposed study. Moreover, a metamaterial (MTM) antenna printed on created substrate 0.8 mm thickness using silver conductive ink. The fabricated performances are instigated numerically than validated experimentally terms S11 spectra and...

In this article, the proposed antenna structure is designed for modern wireless communication systems. The consistent of twelve-unit metamaterial (MTM) unit cells. Therefore, size miniaturized effectively to 30×40mm2 which equivalently about 0.2λo, where λo free space wavelength at 2.7GHz. This achieved by conducting use Hilbert shape MTM with T-resonator induction structure. printed on a single side substrate cover frequency bands from 2.7GHz 3.7GHz and 5.4GHz 5.6GHz. Such found provide...

The permittivity of a material is an important parameter to characterize the degree polarization and identify components impurities. This paper presents non-invasive measurement technique materials in terms their based on modified metamaterial unit-cell sensor. sensor consists complementary split-ring resonator (C-SRR), but its fringe electric field contained with conductive shield intensify normal component field. It shown that by tightly electromagnetically coupling opposite sides...

This paper proposes a transmitter system based on direct antenna amplitude-shift keying modulation for point-to-point microwave link. The proposed is formed from conventional microstrip and novel reconfigurable metasurface layer (RMSL). RMSL has two states: OFF (or Logic-0) ON Logic-1) where each switching scenario provides certain gain level. achieved through controlling the configuration to control amplitude of transmitted signal. Results show that such can modulate electromagnetic signals...

Abstract In this article, the proposed antenna structure is designed for modern wireless communication systems. The consistent with 11‐unit cells of composite right–left‐hand (CRLH) inclusions mounted on an FR4 substrate. Therefore, size miniaturized effectively to 30 × 20 mm 2 cover frequency bands around 2.45 GHz, Wi‐Fi, and 4.2–6 sub‐6 5G, networks. design process conducted a circuit model numerical simulations by evaluating unit cell transmission phase spectra. For this, comparison...

A novel application that utilizes conductive patches composed of purified multi-walled carbon nanotubes (MWCNTs) embedded in a sodium cholate composite thin film to create microstrip antennas operating the microwave frequency regime is proposed. The MWCNTs are suspended an adhesive solvent form ink printed on flexible polymer substrates. DC conductivity was measured by four probe technique and complex relative permittivity Agilent E5071B probe. commercial software package, CST Microwave...

The applications of metamaterials (MTM) based on interdigital capacitor (Cint) and via that extends the function conventional printed antennas to encompass passive wireless sensor at microwave frequencies is presented in this article. proposed antenna consists two rectangular arms Cint connected a microstrip monopole with six shorting wires soldered ground plane. size whole structure, including MTM, found be less than 0.45λ 1.35 GHz. performances, terms return losses (S11), bandwidth (BW),...

This paper presents the design and analysis of a novel single negative metamaterial (MTM) based on concentric rings with crossed lines (CR-CL) to be miniaturized λ/4 at 15G Hz. The unit cell is structured behave as MTM, -ε or -μ, different frequency bands. consistent dielectric substrate, 5 × 1 mm3, FR4-Epoxy underneath conductive patch designed 4.4 mm2. A complete in terms S-parameters, constitutive parameters refraction index are evaluated for using both full wave simulation circuitry...

In this paper, a meander monopole antenna array based electromagnetic band gap (EBG) structure is proposed for MIMO applications. For this, two monopoles of are printed on an FR4 substrate 1.6 mm thickness and fed with 50Ω microstrip lines. The ground plane defected EBG Hilbert shaped inclusions the 3rd order back profile within limited size. This achieved by having negative refractive index (NRI) to reflect surface waves totally away from space filling between elements. Such property occurs...

In this paper, the novelty of exploring applications Iraqi Palm Tree Remnants (IPTR) mixed with Nickel Oxide Nanoparticles (NONP) hosted in Polyethylene (PE), called INP substrates, is utilized by printing metamaterial (MTM) based high gain microwave antennas on them. The proposed substrates are mainly created from pressed flexible organic fibers to suite ink jet technologies. complex relative constitutive parameters characterized terms permittivity (ε) and permeability (μ) within frequency...

This paper presents a microwave sensor based on two-ports network for liquid characterizations. The proposed is constructed as miniaturized resonator Moore fractal geometry of the 4th iteration. T-resonator combined with structure to increase quality factor. occupies an area 50 × 1.6 mm3 printed FR4 substrate. Analytically, theoretical study conducted explain operation. was fabricated and experimentally tested validation. Later, two pans were hold Sample Under Test (SUT) crude oil. frequency...

This paper comprehensively summarizes the Ku-band composite left-handed/right-handed (CRLH) resonator based on a 50 Ω two-ports network. A parametric simulation was provided CST MWS to reach optimal design within Ku-band. invokes two fractals Minkowski and Hilbert curves realize desired specifications. The proposed performance optimized according invoked fractal curves. After reaching performance, achieved results are validated. It is found that occupies an area of 35 × 30 mm2 when printed...

In last two decades, Smart Antenna Systems (SAS) as well Multiple Input Output (MIMO) systems have emerged strong and efficient contenders for 5G wireless communication networks due to the advantages they may bring based on improvements in transmission reception of electromagnetic signals with respect omnidirectional antennas. Although there is a fair amount academic software previously available this field, cross-use simulators do not utilize sufficient system requirements implement all...

In this paper, a 2 × 4 planar horn antenna array for high power microwave (HPM) system applications is introduced. The pyramidal, E-plane-plane, H-plane and the two plates of element are analyzed using HFSS. pyramidal arrayed in configuration structure to obtain gain HPM applications. proposed has aperture 457.2 ×457.2 mm2 feeding 19.05 ×19.05 with 1524 mm axial distance between feeder aperture. 1.58 thickness copper flared supported 11 rod artelon dielectric material εr= 3. introduces...

In this paper, a design of reconfigurable antenna structure with miniaturized size is proposed for sub-6GHz bands 5G communications systems. The shows five main frequencies at: 3.35GHz, 4.6GHz, 4.7GHz, 4.8GHz and 5.1GHz. found to show maximum gain 3dBi at 3.35GHz suit the applications short moderate communication For authors applied study channel performance in terms BER considered frequency interest. Finally, an excellent achieved acceptable frequent reconfiguration quality.