A novel shaped ultrawideband fractal antenna for medical purposes

Sediq, Hiwa Taha; Nourinia, Javad; Ghobadi, Changiz; Mohammadi, Bahman

doi:10.1016/j.bspc.2022.104363

Cited by 18 publications

(6 citation statements)

References 31 publications

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“…A common equation (1) can be used to determine the structural antenna's lower operating frequency (F L ). The height (L) and radius (r) values of an equivalent cylindrical monopole antenna can be used to calculate the dimensions of the planned UWB antenna using equation (1). Additionally, the value of e eff is calculated using the fundamental equation (2) in order to arrive at the constant value of k [25].…”

Section: Antenna Design Sketchmentioning

confidence: 99%

“…Efficiency, compactness, high data rates, capacity, and other factors are crucial parameters for a novel propagation antenna. Any frequency spectrum that is used for communications between 3 and 10 GHz is referred to as a UWB system, according to a 2002 report from the Federal Communications Commission (FCC) [1][2][3]. Technology has undergone a revolution in modified antenna technologies as a result of the steady advancement of ultra-wideband communications to content the major demands of wireless systems [4].…”

Section: Introductionmentioning

confidence: 99%

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A tapered feed UWB-MIMO antenna with high characteristics based on fractal method

Sediq

2023

Phys. Scr.

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A miniaturized antenna based on fractal method and Tapered-feeder technique for ultra-wideband (UWB) applications is developed in this research. The structure of the component cell monopole antenna is designed by using a half circle-shaped fractal method and merging material implementation with the L-stub shape. These techniques provide a wide impedance bandwidth for the innovative wireless antenna with high characteristics, which operates from 2.73 to 12.21 GHz. The planned module cell dimensions are 20 by 16 square millimetres ( 0.181 λ L × 0.145 λ L ), where the wavelength ( λ L ) is 110 mm. This low-profile antenna has then been employed to design an array of 1 × 2 Multi Input Multi Output (MIMO) antennas with an overall size of 20 ×34 mm 2 . Two symmetric geometries are arranged in the designed miniaturized MIMO system with an inverted T-shaped decoupling copper between them. Measurement results show that the dual antenna with multiple diversity metrics has great characteristics for MIMO applications due to providing low mutual coupling value, lower than 0.33 bits per s./Hz of channel capacity loss, minor envelope correlation coefficient of fewer than 0.005, lower −11 dB of total active reflection coefficient, greater than 9.93 dB of diversity gain and proper mean effective gain (MEG ratio≈1, MEG ≤ 0.5). A high peak gain magnitude of 5.42 dBi is provided at an operating frequency of 10.5 GHz for the recommended single antenna.

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Section: Antenna Design Sketchmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A tapered feed UWB-MIMO antenna with high characteristics based on fractal method

Sediq

2023

Phys. Scr.

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“…Te basic circular monopole antenna generates a narrow operating band from 6.84 GHz to 7.37 GHz. Adjusting the distance between the patch and ground plane (w), modifying the electrical size of the patch, and changing the ground as structure help improve impedance matching, a wider bandwidth, and other performance metrics [28][29][30].To achieve the wider bandwidth with proper impedance matching, two elliptical-shaped radiators are integrated with the circular-shaped radiator, as shown in Figure 2(b). As a result, dual bands, from 3.7 GHz to 4.47 GHz and 5.98 GHz to 7.58 GHz, are obtained.…”

Section: The Uwm Antenna Geometrymentioning

confidence: 99%

On the Experimental Investigation of Bone Fracture Recovery Process Using an Ultra-Wideband Planar Monopole Antenna

Rizwan

Kumar

Palaniswamy

2023

International Journal of Antennas and Propagation

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In this paper, a noninvasive bone fracture monitoring system is developed using a planar monopole antenna. The proposed antenna provides an ultra-wideband response, and its overall size is 18 × 19 × 0.8 mm3. The proposed ultra-wideband monopole (UWM) antenna has a maximum measured gain of 3.77 dBi, and the maximum SAR value for an input power of 18 dBm is less than 1.6 (W/kg) (1 g). A bovine tibia is experimentally tested using a proposed UWM antenna to monitor the fracture recovery process and then further analysed using principle component and linear regression analysis. In addition, a microcontroller with a wireless communication module is developed to monitor the data in an Android application. The proposed system could be a promising approach for developing a portable, noninvasive monitoring device.

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“…Using fractal forms at the nanotechnology level has proven its importance in improving the antenna characteristics in the Terahertz Regime [15]. Recent works have also demonstrated the importance of using fractal shapes in the biosensor field to improve its properties in identifying viruses and diseases, such as diabetes and cancer [16][17][18][19]. Recent research has concentrated on the use of fractal sensor for knowing 3D printing properties in Polylactic Acid (PLA), yielding promising results.…”

Section: Introductionmentioning

confidence: 99%

Miniaturization and Fabrication of a Novel Cross-Fractal Biosensor and Sensor for Characterizing 3D Printing Electromagnetic Properties in Polylactic Acid

Zinelabiddine,

Alzahrani,

Alwabli

et al. 2024

IEEE Access

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This study presents a new approach for characterizing the 3D printing electromagnetic properties in Polylactic Acid (PLA) using a novel cross-fractal sensor. The CST Studio Suite simulation, employing the finite element method (FEM), and the ADS simulation software, based on the equivalent circuit of this novel sensor, are utilized to enhance confidence in the convergence of simulation and measurement results. The analysis confirms that the real sensor, based on a cross-sectional fractal resonator, exhibits excellent sensitivity, selectivity, and linearity. Sensor performance is evaluated through two methods: the frequency-based approach and the S11 parameter analysis. In the frequency-based method, the sensor demonstrates a typical sensitivity of 0.0302 GHz/cm³, while in the S11 parameter analysis, it exhibits a typical sensitivity of 0.3065 dB/cm³. These results underscore the high sensitivity and linearity of this innovative sensor. The using of this novel cross fractal sensor, it promises to show how to properly adjust 3D printer parameters, potentially setting the "infill percentage" of the 3D print, this is because the proportion of air present changes when the printing percentage is changed, which can lead to (εr) and loss-tangent (tan (δ)) with varying the infill percentage, by the resonance frequency (fr) approach demonstrates a characteristic sensitivity of 0.1822 GHz/RIU. The experimental study confirmed that the fabricated sensor exhibits miniaturization (with an electrical size of λ0/8), high sensitivity, and excellent linearity in the frequency approach, with a typical sensitivity of 0.004615 GHz/%. The suggested biosensor demonstrated its capability to detect low concentrations of ethanol. These aqueous solutions, containing known alcohols like ethanol in low concentrations, enables identification of Halal and alcohol-free products in food sensing applications.

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A novel shaped ultrawideband fractal antenna for medical purposes

Cited by 18 publications

References 31 publications

A tapered feed UWB-MIMO antenna with high characteristics based on fractal method

A tapered feed UWB-MIMO antenna with high characteristics based on fractal method

On the Experimental Investigation of Bone Fracture Recovery Process Using an Ultra-Wideband Planar Monopole Antenna

Miniaturization and Fabrication of a Novel Cross-Fractal Biosensor and Sensor for Characterizing 3D Printing Electromagnetic Properties in Polylactic Acid

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