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In the recent times the antenna is being used in the medical development for the efficient microwave imaging to detect the breast cancer. The role of design in this research is wideband dielectric resonator antenna (WDRA) by using an inverted L-shape with respect to the curved top face of DRA and inverted trapezoidal patch feed. The antenna design is modeled by using CST microwave studio software...
Microwave imaging is an emerging technology which provides a non-invasive diagnostics tool for the breast cancer detection. It is the most preferable technique among the available technologies in recent times. Antennas u s e d in such technology are desired to have wide bandwidth as well as small dimensions. Choosing a proper frequency band is also a challenging task as it is a tradeof f between the...
In this manuscript, a very compact UWB monopole antenna with large bandwidth, for breast cancer detection is designed and fabricated. The designed antenna has a size 10.2 mm×15.5 mm and operates over a frequency range from 4.23 GHz up to more than 14 GHz. The proposed antenna shows a sufficient variation of transmission response, displays good omnidirectional radiation patterns, gain level reaching...
Geometry of annular antenna array using planar monopole antenna is presented for Microwave Imaging for Breast Cancer Detection System. The single UWB planar monopole antenna and the system is designed for frequency range of 2.2GHz to 12GHz and the simulated and measured results are presented. All the simulations of Single patch and antenna system are done in High Frequency Structure Simulator.
In contrast to other types of cancer, breast cancer remains a relatively unexplored target for microwave ablation (MWA) technology. We highlight two recent developments towards the clinical realization of MWA for breast tumor treatment: the design of miniaturized MWA antennas that achieve compact heating patterns without the use of a balun and the investigation of microwave-induced heating in the...
In this paper we presents experimental results of a designed microwave-imaging system prototype combined with the interferometric multiple signal classification (I-MUSIC) algorithm for use in research towards early breast cancer detection.
Utilization of the UWB antenna as a main device for breast cancer detection is an interesting research topic in the last five years. This detection method is well-known as Ultra Wide Band (UWB) Microwave Imaging. In this paper, a stairs-shaped microstrip antenna was successfully designed to satisfy the UWB technology standard. The numerical evaluation of the antenna performance shows that the antenna...
Digital Breast Tomosynthesis (DBT) can be fused with microwave Nearfield Radar Imaging (NRI) in order to improve breast cancer detection. This paper presents the design of a new miniaturized ultra-wideband Antipodal Vivaldi Antenna (AVA), which can be used in such a hybrid DBT/NRI mechatronic imaging device. The antenna is miniaturized by using a coupling media and a substrate that have a high effective...
A compact low profile UWB-MIMO antenna for breast cancer detection is proposed. Two square patches are used in perpendicular to each other in order to achieve good pattern diversity. Two ground stubs etched on the ground plane enhance isolation and increase impedance bandwidth. Simulation has been carried out using CST Microwave studio. Results show that the UWB-MIMO Antenna has an impedance bandwidth...
Balanced Antipodal Vivaldi Antennas (BAVAs) have been recently proposed for ultra-wideband (UWB) microwave imaging in medical applications such as breast cancer detection. This paper presents a modified design that allows the use of wideband BAVAs in microwave tomography, where the frequency range of interest is significantly lower than the UWB range down to 1 GHz. The performance of the antenna is...
Survival rate for breast cancer is directly related to the stage at diagnosis, therefore clinical emphasis is on early screening and detection. Microwave radiometry is a passive imaging modality proposed for breast cancer detection without the need for ionizing radiation. Detection of breast tumor using radiometry is challenging as the intensity of the thermal radiation received by the antenna is...
A microstrip spiral antenna with sharpening and a bi-conical over sleeve antenna have been proposed for noninvasive superficial layer breast cancer and invasive breast cancer thermotherapies of deep-located breast tumors, respectively. Some measured results are obtained by comparing results of the microwave equivalent phantom model and the swine. A process for the breast cancer treatment is also proposed...
A transceiver subsystem for microwave breast imaging system was designed and fabricated. The subsystem consists of a transmitter, a receiver and a 16-channel switch matrix module. The subsystem is operated in the frequency from 500 MHz to 3 GHz and has 130 dB dynamic range and 110 dB channel isolation.
Breast cancer ranks second as a cause of cancer death in women. An estimated 39,970 breast cancer death were expected in 2011 even though rates for breast cancer have steadily decreased since 1990 owing to improved treatment, decreased incidence and most importantly progress in early detection [1]. Early stage detection is the important key for reducing breast cancer mortality. X-ray mammography is...
In this work, we develop a complete microwave induced thermal acoustic imaging (TAI) model for potential biomedical imaging applications. Acoustic pressure generated by spherical breast tumor target is investigated by finite-difference time-domain (FDTD) simulations of the electromagnetic (EM) and acoustic models. Simulation results achieve quantitative relationship between the input power and the...
A new ultra wide band TEM horn antenna for near-field microwave imaging of tissue is proposed. The antenna is filled with solid dielectric medium and is isolated from all sides, except the front aperture, with copper sheets. It couples all of its energy into the tissue. The impedance match of the antenna is satisfactory within the ultra wideband frequency range. The antenna has no parasitic radiation...
Thermal interstitial microwave ablation comparison between swine breast tissue and breast phantom using a coaxial antenna was presented. Experimental protocol was composed by a radiation system and a thermometry system. Coaxial antenna works at 2.45 GHz, power apply during experiments was 10 watts for 5 minutes. Thermal sensors were placed next to the antenna, at 0.50 cm, 1 cm and 1.50 cm to the antenna...
Limitations of conventional X-ray mammography have stimulated recent interest into active microwave based diagnostic approaches that take advantage of a sharper dielectric contrast between benign and malignant breast tissues exhibited in the UHF range of frequency. This interest comes from a superior sensitivity of RF-based techniques, which can have a huge social and cost impact. Therefore, many...
Ultra-wideband (UWB) antennas such as compact vivaldi antennas has been applied to the simulation experiment of breast cancer detection. A commercial-made synthetic breast phantom model is used in our experiment. We can find that it is effective to detect the breast cancer tumor using vegetable gelatin model subtraction method. Image reconstructions of the breast models using reflection data have...
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