An improved hemispeherical antenna array design for breast imaging

Craddock, IJ; Klemm, Maciek; Preece, AW; Benjamin, R.

doi:10.1049/ic.2007.1602

Cited by 20 publications

(19 citation statements)

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“…Unlike the earlier prototype shown in Figure 3(b), in the symmetrically curved antenna array (second-generation), the antennas were aligned in rows and columns, and the array has two axes of symmetry as shown in Figure 5(a). This optimization is possible due to the size reduction of the sensor of approximately by 50% [39]. The reduction was made on the substrate/ground-plane cross-section size without considerable changes in its performance.…”

Section: Uwb Antennas In Microwave Imaging Systemsmentioning

confidence: 99%

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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%

“…The reduction was made on the substrate/ground-plane cross-section size without considerable changes in its performance. With the contribution of Craddock et al in [39], Klemm et al optimized the design to an initial clinical prototype developed at the University of Bristol [40] as shown in Figure 5(b).…”

Section: Uwb Antennas In Microwave Imaging Systemsmentioning

confidence: 99%

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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“…In recent years, microwave breast tumor detection is growing as a promising technique [1][2][3][4][5][6][7][8][9][10], since it is a non-invasive technique that uses non-ionizing radiation. It is considered a potential alternative or complement to X-rays [1,2], which is the basic technique used in breast cancer detection today.…”

Section: Introductionmentioning

confidence: 99%

“…Current research focuses on two categories, microwave tomography [6][7][8] and ultra-wideband (UWB) radar-based approach [1][2][3][4][5]. In the latter, several techniques have recently been developed -Concepts and circuits based on UWB pulses, especially for communication systems [11], which have also proved interesting for tomography applications.…”

Section: Introductionmentioning

confidence: 99%

“…In the latter, several techniques have recently been developed -Concepts and circuits based on UWB pulses, especially for communication systems [11], which have also proved interesting for tomography applications. In consequence a number of imaging methods for UWB microwave imaging of breast tumors are already available [1][2][3][4][5]. Most of them are based on focusing techniques such as delay-and-sum [1].…”

Section: Introductionmentioning

confidence: 99%

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Weighted Centroid Method for Breast Tumor Localization Using an Uwb Radar

Lázaro¹,

Girbau²,

Villarino³

2010

PIER B

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Abstract-This paper studies the potential of ultra-wideband (UWB) microwave imaging for detection and localization of breast cancer in its early stages. A method is proposed for locating tumors which is based on the time-of-flight of the signal backscattered at the tumor. Timeof-flight is detected using a wavelet transform algorithm. The main contribution of this paper is that it proposes to determine the position of the tumor by using an adapted version of the centroid localization method used in wireless sensor nodes. Its main advantage is that it does not require knowing a priori neither the propagation velocity of the breast nor its dielectric permittivity. The feasibility of the method has been investigated by means of simulated and experimental results with an ultra-wideband radar and a phantom.

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Three dimensions localization of tumors in confocal microwave imaging for breast cancer detection

Ahadi

isa

Saripan

et al. 2015

Micro & Optical Tech Letters

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Basis of the microwave imaging is the contrast in dielectric properties of breast normal tissue and tumor. Confocal microwave imaging involves transmitting an ultrawideband signal through number of antennas and records the scattered signals. Then by synthetically focusing reflections from the breast, we can make image from breast. In this article, we demonstrate the feasibility of detecting 10-and 5-mm tumors in three dimensions with different antenna arrangements with different number of antennas. Two models of hemispherical array are presented. An image formation algorithm is presented for 3D image making. Successful detection of 10-and 5-mm tumors are achieved with the hemispherical arrangement. The influences of the different breast sizes for tumor detection are also explored.

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An improved hemispeherical antenna array design for breast imaging

Cited by 20 publications

References 0 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

Weighted Centroid Method for Breast Tumor Localization Using an Uwb Radar

Three dimensions localization of tumors in confocal microwave imaging for breast cancer detection

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