Simulation and design of an UWB imaging system for breast cancer detection

Abstract

not only for their insightful guidance, patience, support and invaluable assistance throughout this work, but also for their help in my daily life over the past three years. I would also like to show my gratitude to Marco and Azzurra for their help in reviewing my thesis, as well as Marco Crepaldi for his technical advice and help during my circuit design work. I have received much help and support from numerous past and present members of the UWB group, including Alessandro, Stefano, Matteo, Paolo, Franscesco and Antonio. I want to say thank you so much guys, I am so happy to work with you. My appreciation extends to all the students in the VLSI Lab, Awais, Ruiyu, Juanchi, Manoj, Ali, Azhar, Abduwali and Matteo who kept me company with their discussions and cheerful chats during the coffee break, and the rest of my fellows whose names are missing due to space limitation. Moreover, I would like to thank all my lovely friends, especially my roommates and "lunch group" members, for their companion, encouragement and support. Finally, I would like to thank my family for their unconditional support and love along these years. Thanks Mom, thanks Dad, your support means so much to me. I have to say thank you to Yu Jian, for those moments of peace and well-being that only you can give me.

A COTS-Based Microwave Imaging System for Breast-Cancer Detection

“…There have been previous attempts to avoid VNAs, especially for UWB radar systems working directly in the time domain [30]. While the authors of [30] try to avoid custom components, others propose the implementation of ad-hoc CMOS ICs working in time domain, with the aim of improving the performance over commercial components [14][31] [15] [16]. One of the issues with these UWB time-domain methods is the need for complex calibration schemes to remove the clutter.…”

“…To further compare the results obtained by the VNA and our system, we report in Tab. I the values of Signal-to-Mean Ratio (SMR) and Signal-to-Clutter Ratio (SCR) [16] obtained in each case of Fig. 10.…”

“…Therefore, this is basically a detection method. To use the UWB radar approach in the time-domain, ad-hoc new integrated circuits (ICs) need to be developed [13] [14][15] [16]. It is possible to use this approach in the frequency-domain and reconstruct the UWB pulses via FFT [17], an approach usually referred in the literature as Stepped-Frequency Continuous Wave (SFCW) [18].…”

Efficient techniques to enhance nearfield imaging of human head for anomaly detection

“…Nearfield electromagnetic imaging (EMI) using energy in radio and microwave frequency ranges is an attractive research topic in various disciplines, particularly in the biomedical fields [1][2][3][4]. The contrast in dielectric properties for cancerous and surrounding healthy tissues have been used for tumor detection in applications such as breast imaging [1][2][3].…”

“…The contrast in dielectric properties for cancerous and surrounding healthy tissues have been used for tumor detection in applications such as breast imaging [1][2][3]. However, limited research work is done for the head imaging [4], due to various encountered challenges.…”