Artificial Magnetic Conductor (AMC) is a type of implemented metamaterial in several antennae and microwave design applications. By utilizing the unique characteristics metamaterials which do not exist naturally, performance various devices can be enhanced. This article elaborates on technical perspective recent works AMC for antenna The discusses theoretical aspects, simulation procedures, measurement setup used to characterize unit cell. Subsequently, that involve incorporation are...

The modes' reconstruction into the stochastic and deterministic components is proposed for forecasting crude oil prices with concept of "divide conquer" modes reconstruction. It to reduce complexity in computation enhance accuracy decomposition ensemble technique. Under framework conquer", methodologies power successfully improves model based on corresponding using average mutual information (AMI). procedure four layers i.e., complex data decomposition, components, prediction each individual...

This paper aims to produce a high data capacity and miniaturized flexible chipless RFID tag based on the frequency signature using Modified Complementary Split Ring Resonator (MCSRR). The proposed 19 bits shifting technique consists of five slotted overlaying MCSRR with Different Width (MCSRR DW) structures dimension 48 mm × mm. structure is designed by (Polyethylene Terephthalate) PET substrate permittivity 0.2. operating between 0.9 GHz 2.7 GHz. advancement DW has successfully about 107...

This paper presents the design, fabrication, and measurement of triple band metamaterial absorber at 8GHz, 10GHz 12GHz which are in X-band frequency range. The unit cell consists three concentric copper rings difierent radii, printed on 0.8mm thick FR4 substrate order to obtain resonant frequencies. highly symmetrical ring structure nature makes this insensitive any polarization state incident electromagnetic (EM) waves for normal waves. proposed is capable operate wide variations angle...

In this paper, we propose a metamaterial (MTM) structure with reconfigurable property designed to operate at the millimetre-wave (mm-wave) spectrum. Four switches are used achieve of MTM two configurations. These configurations exhibit different refractive indices, which guide radiation beam antenna desired direction. The proposed planar dipole operates 5th generation (5G) band 28 GHz. electromagnetic (EM) rays pass through phases, subsequently results in tilting toward configuration high...

This paper discusses performance improvement with the integration of an artificial magnetic conductor (AMC) into array antennas.An AMC defected ground structure (DGS) was designed to construct plane and in-phase superstrate.The two distinguishable structures were integrated antenna, which serves as a reference antenna at 5.8 GHz.The impedance bandwidth (BW) significantly improved 287% when 37% reduced size.On other hand, inphase superstrate effectively enhances gain BW by 1 dBi 44%,...

Frequency reconfigurable square ring slot antenna is presented. The designed comprises of two small rectangular and a fed by microstrip transmission line. Two switches are placed between the which provides frequency reconfigurability. capable reconfiguring to three bands at 1.9 GHz, 2.1 GHz 2.3 GHz. simulated gain radiation pattern, together with return losses, discussed. has potential be used for GSM, 3G Wimax wireless communication system.

COVID-19 is a virus that spread globally, causing severe health complications and substantial economic impact in various parts of the world. The forecast on infections significant crucial information will help executing policies effectively reducing daily cases. Filtering techniques are important ways to model dynamic structures because they provide good valuations over recursive Bayesian updates. Kalman filters, one filtering techniques, useful studying contagious infections. filter...

In this research, a reconfigurable metamaterial (MM) structure was designed using millimeter-wave (MMW) band with two configurations that exhibit different refractive indices. These MM are used to guide the antenna's main beam in desired direction 5th generation (5G) of 28 GHz. The indices created phase change for electromagnetic (EM) wave antenna, which deflected beam. A contiguous squares resonator (CSR) is proposed as an operate at MMW band. CSR reconfigured three switches achieve...

Crying is a crucial means of communication for newborns, crying newborn's early form communication. Many individuals are unable to recognise baby's intention from cry unless they have the appropriate training or expertise, such as nurses, paediatricians, and childcare professionals. Accurately interpreting can be challenging. In this research paper, study uses method classifying baby sounds using Convolutional Neural Network (CNN) dataset includes belly pain, burping, discomfort, hungry,...

A dual-band B-shaped monopole antenna for MIMO application is presented. The proposed consists of element which operates at dual band frequencies 2.45GHz and 5.8GHz. prototype has been fabricated when tested, the impedance bandwidths are 29.9% 33.8% 5.8GHz, respectively. Good agreement between measurement simulation results in term return loss radiation pattern have obtained.

An X-Polarization array microstrip patch antenna for WiMAX application is introduced in this paper. The operates at frequency of 3.55 GHz. substrate used FR-4 with the thickness 1.6 mm, relative permittivity 4.5 and loss tangent 0.019. use parallel feeding network to feed all eight elements coaxial port. has gain 6 dBi, directivity 8.754 dBi. only requires single input port unlike conventional that uses multiple application. Parametric study cross angle performance studied which have not...

ABSTRACT Despite being widely used, branch‐line couplers (BLC) still suffer from large size. This makes it difficult to incorporate BLC into miniature microwave devices. The work presented here is the design and implementation of a 3‐dB reduced‐size wide‐band 3‐branch‐line coupler (3‐BLC). By combining meander line, cross, two‐step stubs techniques, size reduction bandwidth improvement successfully achieved on 3‐BLC design. length was reduced along horizontal branches using technique while...

A meandered microstrip transmission line resonator is proposed for the design of chip-less RFID tag. The 6 bit operates from 3 to 5 GHz. tag consists a micro strip open stub resonators and two Ultra-wide Band (UWB) monopole antennas. 30 mm × 35 designed on Taconic substrate with permittivity 2.75. modification technique straight toward introduced.

A tapered slot Vivaldi antenna with reconfigurable capability is proposed in this paper. The length was implemented on ring pairs to generate narrowband multiples at 1.5, 3.24, 3.44, and 4.12 GHz. Studies the assignment of antennas are presented discussed. combination a antenna, length, slots successfully produces tunable that able operate wideband narrowband, allowing for wireless communication. from 1.5 5 GHZ. study also extended filtering effect pair. performs well terms radiation...

A wideband antenna with band notch function using electromagnetic bandgap (EBG) structure is proposed. The capable of reconfiguring up to three operation. Three EBGs are aligned underneath the feed line antenna. transmission lines over unit cells perform as a stop filter. switch placed on each EBG structure, which enables reconfigurable simulated and measured reflection coefficients, together radiation patterns, shown demonstrate performance

This paper presents a compact 3-dB coupler on dual substrate layer with rectangular slotted microstrip ground plane. The is designed for operating frequency at 2.45 GHz using an inexpensive FR-4 substrate. A design dimension of 19 mm x 7.5 offers size reduction 62% while simultaneously enhanced the bandwidth to 42.7% compared conventional coupler.