Metamaterial-Fractal-Defected Ground Structure Concepts Combining for Highly Miniaturized Triple-Band Antenna Design

Annou, Abderrahim; Berhab, Souad; Chebbara, Fouad

doi:10.1590/2179-10742020v19i4894

Cited by 11 publications

(4 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…e thickness of the substrate (h 2 ) is 0.7 mm. e S-parameters (reflection coefficient S 11 and transmission coefficient S 21 ) of the metamaterial structure are analyzed using HFSS software; then, the effective parameters of the metamaterial structure (such as the electrical permittivity (ε), magnetic permeability (μ), impedance (z), and the refractive index (n)) are calculated using Matlab program [16], as shown in Figure 7. As it can be seen, the real parts of the electrical permittivity, magnetic permeability, and refractive index reach a negative value in the (4.8-5.8) GHz band.…”

Section: Metamaterials Structure Designmentioning

confidence: 99%

See 1 more Smart Citation

A New Approach for Calculation of Metamaterial Printed Fractal Antenna Using Galerkin’s Method

Saedy

Saleh

Ali

2022

International Journal of Antennas and Propagation

View full text Add to dashboard Cite

This work provides a new approach for computing the impedance of a proposed multiband printed fractal antenna for wireless applications. Galerkin’s method is applied to deduce the impedance relationship of the proposed structure and then compute the return loss verses frequency by converting the impedance matrix of the proposed antenna [Z] to the scattering matrix [S]. This model is developed in order to study the impedance of the proposed antenna after adding a metamaterial structure in the antenna substrate. The obtained model is able to determine the resonant frequencies and the return loss of the proposed antenna. The model is also able to define the changes in these values when the dimensions of the proposed structure change. The proposed antenna provides multiband wireless applications in the (1–10) GHz frequency band, and the return loss of the proposed fractal antenna has been improved using negative permittivity and negative permeability metamaterial structure.

show abstract

Section: Metamaterials Structure Designmentioning

confidence: 99%

“…In [16], metamaterial fractal defected ground structure was presented to obtain multiband wireless applications (2.8 GHz, 4.1-4.45 GHz, and 5.6 GHz). Koch snowflake fractal was etched from the four edges of the resonating patch to improve return loss.…”

Section: Introduction E Technical Development In Wireless Communicati...mentioning

confidence: 99%

A New Approach for Calculation of Metamaterial Printed Fractal Antenna Using Galerkin’s Method

Saedy

Saleh

Ali

2022

International Journal of Antennas and Propagation

View full text Add to dashboard Cite

show abstract

“…On the other hand, they have a number of disadvantages, the most significant of which are low gain and limited bandwidth. As a result, numerous antenna researchers have made significant attempts to alleviate these limitations, such as by increasing bandwidth: increasing the thickness of the substrate [22], using stub [23], negative capacitor/inductor [24], Non-Foster Matching Circuit [25], and defected ground structures [26], magneto-dielectric substrates [27], electromagnetic band-gap (EBG) structures [28], and metamaterial resonators [29], using fractal geometries [30], and cavity backing [31]. The ever-increasing demand for wireless applications that deliver high-quality content to a large number of users simultaneously has resulted in a massive increase in data volume, which has resulted in a spectrum shortage in the microwave band, causing networks to become congested.…”

Section: Introductionmentioning

confidence: 99%

Design and simulation of a novel miniaturized printed antenna with ultra-wideband and high gain for millimeter-wave wireless applications

2023

IJETER

View full text Add to dashboard Cite

The goal of this work is to create a new patch antenna array with a standard gain, broadband, unidirectional radiation pattern, and high efficiency, making it a viable contender for millimeter-wave wireless applications. This study begins with a simple single-patch antenna that has four key components to provide effective matching and a wide impedance bandwidth: elliptical lateral edges, vertical stubs, slots expressed in concavity, and notches. The ground plane was defect-free, and the patch was printed on a Rogers RT5880 substrate. The performance of the proposed antenna can be improved using array topologies of 1×2 and 2×2 patches, for which a corporate feed network was built for excitation. The suggested 2×2 array antenna with a compact size of 18x16.1 mm2 achieved a gain of 13.8 dB, 92% efficiency, a return loss of-34.8 dB, and an ultra-wide bandwidth of 12.2 GHz (ranging from 39.9 to 52.1GHz) at a resonant frequency of 43.2. It’s a novel compact 2×2 array antenna appropriate for miniature devices is suggested using CST studio software, which gathers all qualities together, including high-gain, radiation efficiency, and ultra-wideband. The planned antenna operating frequency range runs from 27 to 58 GHz, which encompasses multiple frequency bands, such as V, Q, and Ka.

show abstract

“…

…”

mentioning

confidence: 99%

A novel design of triangular-shaped hexagonal fractal antenna for satellite communication

2023

IJATEE

View full text Add to dashboard Cite

Modern telecommunications systems required antennae along with wider bandwidths including the smaller dimension as compared to conventional possibly antennas [1,2]. It has initiated the antenna's research in various directions, one form which utilizes the fractal shape antenna's element [3,4]. There exist important relations between antenna dimensions and wavelengths. The relation states that if an antenna's sizes are lesser than the λ/4 then the antenna isn't effective because of the radiation's resistances, and gains, as well as the bandwidth, gets reduced [5,6]. Further, to overcome the limitation of the antenna's size got increased, which again problems with the handheld device. *Author for correspondence Fractal geometry is considered a pragmatic solution for the existing aforementioned problem [79]. The term fractal means the irregular or broken fragment. This is defined from Benoit's Mandelbrot derived from the Latin word 'fractus' that means fracture or the broken [1012]. The Fractal's antennas get inspired by the nature. A fractal antenna has two main properties that are space-filling as well as self-similarities [1315]. The space-filling properties reduced the size of antennas and this makes antennas electronically larger in the smaller physical spaces [1618]. Self-similarities property means that the patches of the antennas are subdivided into small parts as well as every smaller part is the smallest portion of the reduced sizes of main geometries [1922].

show abstract

Metamaterial-Fractal-Defected Ground Structure Concepts Combining for Highly Miniaturized Triple-Band Antenna Design

Cited by 11 publications

References 31 publications

A New Approach for Calculation of Metamaterial Printed Fractal Antenna Using Galerkin’s Method

A New Approach for Calculation of Metamaterial Printed Fractal Antenna Using Galerkin’s Method

Design and simulation of a novel miniaturized printed antenna with ultra-wideband and high gain for millimeter-wave wireless applications

A novel design of triangular-shaped hexagonal fractal antenna for satellite communication

Contact Info

Product

Resources

About