Three-Dimensional Far-Field Holographic Microwave Imaging: An Experimental Investigation of Dielectric Object

Wang, Lulu; Simpkin, Ray; Al-Jumaily, and Ahmed M.

doi:10.2528/pierb14101502

Cited by 6 publications

(10 citation statements)

References 37 publications

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“…The simulation results of the same dielectric object that contains two lesions using a 16-element random antenna array configuration when the object was placed at a different height are detailed in [14]. Simulation results show that the best measurement distance range between the antenna array and the object is 450 mm to 550 mm.…”

Section: Simulation Resultsmentioning

confidence: 98%

“…During an operation, one port of a microwave generator excites a single transmitter at one frequency of 12.6 GHz [14]. The magnitude and phase of the backscattered electric field from the target object is measured at each receiver element in the array plane, which is connected to the second port of the microwave generator via a 16-channel switch.…”

Section: Signal and Imaging Processingmentioning

confidence: 99%

“…Figure 7 displays the experimental setups of three antenna array configurations. The dielectric object was illuminated using a transmitter, and the scattered field at each receiver was recorded at a frequency of 12.6 GHz [14]. The complex correlation of the scattered field data among all possible pairs of antennas was then computed to generate a complex visibility function that was used as the input to the HMI imaging algorithm.…”

Section: Experimental System Setupmentioning

confidence: 99%

“…Figure 6 shows an experimental setup of HMI data acquisition system which is detailed in [14]. An array of 16 antennas was embedded into a sheet of microwave absorbing material ECCOSORB AN-79 (600 mm × 600 mm) and connected to an Agilent N5230A (10 MHz∼20 GHz) PNA.…”

Section: Experimental System Setupmentioning

confidence: 99%

“…This paper presents the concept of using logarithmic spiral and random antenna arrays to generate high-resolution microwave images. Simulated and experimental investigations of logarithmic spiral and random antenna arrays by using our recently developed HMI technique [11][12][13][14] for imaging small inclusion embedded in a dielectric object are presented. The comparison of the proposed antenna arrays with the regularly spaced antenna array is also detailed.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Investigation of Antenna Array Configurations Using Far-Field Holographic Microwave Imaging Technique

Wang¹,

Al‐Jumaily²,

Simpkin³

2015

PIER M

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Abstract-Biomedical imaging has played an important role in identifying and monitoring the effectiveness of the current state of the art treatments for many diseases. The authors recently proposed a novel single-transmitter-multiple-receiver holographic microwave imaging (HMI) technique for imaging small inclusion embedded in a dielectric object which has potential application in medical diagnostics. HMI image quality depends highly on the antenna baseline difference, in order words, the antenna array configuration. Different antenna arrays produce different quality of dielectric images by using HMI imaging algorithm. This paper investigates the antenna array configurations effect on image quality by using HMI imaging approach. Three configurations including spiral, random and regularly spaced arrays are presented. Both simulated and experimental results are obtained and compared to fully demonstrate the effectiveness of antenna arrays to the HMI technique. The results show that the proposed spiral and random array configurations have an ability to produce high-resolution images at significantly lower costs than regularly spaced arrays.

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Section: Simulation Resultsmentioning

confidence: 98%

Section: Signal and Imaging Processingmentioning

confidence: 99%

Section: Experimental System Setupmentioning

confidence: 99%

Section: Experimental System Setupmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Investigation of Antenna Array Configurations Using Far-Field Holographic Microwave Imaging Technique

Wang¹,

Al‐Jumaily²,

Simpkin³

2015

PIER M

Self Cite

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Three-Dimensional Holographic Imaging Using Single Frequency Microwave Data

Amineh

Ravan

Sharma

et al. 2018

International Journal of Antennas and Propagation

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Three-dimensional (3D) microwave and millimeter wave imaging techniques based on the holographic principles have been successfully employed in several applications such as security screening, body shape measurement for the apparel industry, underground imaging, and wall imaging. The previously proposed 3D holographic imaging techniques require the acquisition of wideband data over rectangular or cylindrical apertures. Requirement for wideband data imposes limitations on the hardware (in particular at very high or very low frequencies). It may also lead to errors in the produced images if the media is dispersive (e.g., in biomedical imaging) and not modeled properly in the image reconstruction process. To address these limitations, here, we propose a technique to perform 3D imaging with single frequency data. Instead of collecting data at multiple frequencies, we acquire the backscattered fields with an array of resonant antennas. We demonstrate the possibility of 3D imaging with the proposed setup and perform a comprehensive study of the capabilities and limitations of the technique via simulations. To perform a realistic study, the simulation data is contaminated by noise.

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Early Diagnosis of Breast Cancer

Wang

2017

Sensors

Self Cite

359

220

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Early-stage cancer detection could reduce breast cancer death rates significantly in the long-term. The most critical point for best prognosis is to identify early-stage cancer cells. Investigators have studied many breast diagnostic approaches, including mammography, magnetic resonance imaging, ultrasound, computerized tomography, positron emission tomography and biopsy. However, these techniques have some limitations such as being expensive, time consuming and not suitable for young women. Developing a high-sensitive and rapid early-stage breast cancer diagnostic method is urgent. In recent years, investigators have paid their attention in the development of biosensors to detect breast cancer using different biomarkers. Apart from biosensors and biomarkers, microwave imaging techniques have also been intensely studied as a promising diagnostic tool for rapid and cost-effective early-stage breast cancer detection. This paper aims to provide an overview on recent important achievements in breast screening methods (particularly on microwave imaging) and breast biomarkers along with biosensors for rapidly diagnosing breast cancer.

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Three-Dimensional Far-Field Holographic Microwave Imaging: An Experimental Investigation of Dielectric Object

Cited by 6 publications

References 37 publications

Investigation of Antenna Array Configurations Using Far-Field Holographic Microwave Imaging Technique

Investigation of Antenna Array Configurations Using Far-Field Holographic Microwave Imaging Technique

Three-Dimensional Holographic Imaging Using Single Frequency Microwave Data

Early Diagnosis of Breast Cancer

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