Miniature monopole fractal antenna with inscribed arrowhead cuts for UWB applications

Zehforoosh, Yashar; Naser‐Moghadasi, Mohammad; Sadeghzadeh, R. A.; Ghobadi, Changiz

doi:10.1587/elex.9.1855

Cited by 6 publications

(6 citation statements)

References 9 publications

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“…There are other prototypes with slightly better characteristics such as gains and bandwidths, but they use fractal techniques [23][24][25][26]. However, the dimensions are increased considerably compared to the one presented by Afifi et al (10 × 10 mm 2 ) [20], and the performance of this UWB antenna is dependent on the fractal patch, feeding, slots on the partial ground plane achieving approximately gains of 4 dB, and omnidirectional radiation patterns.…”

Section: Uwb Antennas In Microwave Imaging Systemsmentioning

confidence: 99%

“…One of the main challenges in the design of these antennas is related to the physical size in order to allow a greater number of antennas to collect more information of the scattered signal for a successful image reconstruction, as well as to achieve a wider bandwidth to get a high-resolution image [20] and reduce the distortion in transmission of short-duration pulses [21]. Several antennas were proposed for cancer detection as monopole antennas [14,22], fractal antennas [23][24][25][26], antipodal Vivaldi antennas [27], slot antenna [28,29], and patch antenna [30], as will be described below.…”

Section: Radiofrequency As a Cancer Diagnostic Toolmentioning

confidence: 99%

“…The metamaterial unit cells are inserted on the Figure 17. UWB fractal antennas: (a) 4th iteration [23], (b) 4th iteration [24], (c) 3rd iteration [25], and (d) Minkowski-like geometry [26].…”

Section: Uwb Antennas In Microwave Imaging Systemsmentioning

confidence: 99%

See 2 more Smart Citations

An Overview of Uwb Antennas for Microwave Imaging Systems for Cancer Detection Purposes

Borja¹,

Tirado‐Méndez²,

Jardon-Aguilar³

2018

PIER B

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Abstract-In the last decades, microwave imaging has been a new area of research due to its many advantages over current imaging systems. Microwave imaging system is used for in-depth inspection of biological tissues. The test provides the identification of morphological changes in these biological tissues, as well as their locations. The emerging Ultra-Wideband (UWB) microwave imaging gives better result with the main advantage of using non-ionizing radiation. In these systems, antennas play a very important role, and as such, their optimization has become a very important topic because the device is placed close to the human body. Thus, many aspects are of great importance in the design of the antennas starting from the material with which it is constructed, its dimensions, operation bandwidth, human body influence on the antenna parameters, short-pulse propagation, etc. Recent research has shown several efforts in improving the electromagnetic sensors used in these systems, either as individual or array elements. In this paper, we provide an overview of the most relevant developments in the field of UWB high directivity sensors used in microwave imaging systems.

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Section: Uwb Antennas In Microwave Imaging Systemsmentioning

confidence: 99%

Section: Radiofrequency As a Cancer Diagnostic Toolmentioning

confidence: 99%

See 1 more Smart Citation

An Overview of Uwb Antennas for Microwave Imaging Systems for Cancer Detection Purposes

Borja¹,

Tirado‐Méndez²,

Jardon-Aguilar³

2018

PIER B

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“…Nowadays, there has been an expanding quantity of literature on fractal UWB antennas depending on self‐similarity and space filling property that contain many advantages such as multiband, broadband, and UWB properties, miniaturization of antenna dimension. In , a square shape fractal antenna of electrical dimension 0.47 λ × 0.47 λ at 2.355 GHz low frequency is proposed for wireless communications, medical imaging, and UWB applications.…”

Section: Introductionmentioning

confidence: 99%

Microstrip line‐fed fractal antenna with a high fidelity factor for UWB imaging applications

Islam¹,

Islam

Samsuzzaman

et al. 2015

Micro & Optical Tech Letters

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A printed microstrip line‐fed fractal antenna is presented with a high fidelity factor for UWB applications. The antenna structure of electrical dimension 0.24 λ × 0.33 λ at lower frequency 3.1 GHz is made of a fractal patch, a slotted partial ground plane, and a microstrip feed, which is fabricated on FR4 material of low cost and dielectric. Measured results demonstrates that the fractal antenna achieves fractional bandwidth of 117.88% covering the frequency range from 3.1 GHz to more than 12 GHz with a maximum gain 3.54 dBi at 6.25 GHz. An acceptable analogy is observed between measured and simulation results. The high fidelity factor, sharply surface current distribution, time domain performances, acceptable gain, and nearly omnidirectional radiation characteristic have validated the appropriateness of this proposed fractal antenna for UWB and microwave imaging applications. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2580–2585, 2015

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“…Wireless local area network (WLAN) and worldwide interoperability for microwave access (WiMAX) have been widely applied in mobile devices, such as handheld computers and intelligent phones [2]. Also many efforts in UWB antenna fields have been reported that more descriptions come in [3][4][5][6][7][8][9][10][11].…”

mentioning

confidence: 99%

A Small Quad-Band Monopole Antenna with Folded Strip Lines for WiMAX/WLAN and ITU Applications

Zehforoosh

Rezvani

2017

J. Microw. Optoelectron. Electromagn. Appl.

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Miniature monopole fractal antenna with inscribed arrowhead cuts for UWB applications

Cited by 6 publications

References 9 publications

An Overview of Uwb Antennas for Microwave Imaging Systems for Cancer Detection Purposes

An Overview of Uwb Antennas for Microwave Imaging Systems for Cancer Detection Purposes

Microstrip line‐fed fractal antenna with a high fidelity factor for UWB imaging applications

A Small Quad-Band Monopole Antenna with Folded Strip Lines for WiMAX/WLAN and ITU Applications

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