المؤلفون: Martins, Raquel A., Felicio, Joao M., Costa, Jorge R., Fernandes, Carlos A.

المصدر: 2024 18th European Conference on Antennas and Propagation (EuCAP) Antennas and Propagation (EuCAP), 2024 18th European Conference on. :1-5 Mar, 2024

Relation: 2024 18th European Conference on Antennas and Propagation (EuCAP)

المؤلفون: Martins, Raquel A., Felicio, Joao M., Costa, Jorge R., Fernandes, Carlos A.

المصدر: 2023 17th European Conference on Antennas and Propagation (EuCAP) Antennas and Propagation (EuCAP), 2023 17th European Conference on. :1-4 Mar, 2023

Relation: 2023 17th European Conference on Antennas and Propagation (EuCAP)

المؤلفون: Martins, Raquel A., Felicio, Joao M., Costa, Jorge R., Fernandes, Carlos A.

المصدر: 2021 15th European Conference on Antennas and Propagation (EuCAP) Antennas and Propagation (EuCAP), 2021 15th European Conference on. :1-5 Mar, 2021

Relation: 2021 15th European Conference on Antennas and Propagation (EuCAP)

المؤلفون: Eleuterio, Ricardo, Conceicao, Raquel C.

المصدر: 2015 9th European Conference on Antennas and Propagation (EuCAP) Antennas and Propagation (EuCAP), 2015 9th European Conference on. :1-3 Apr, 2015

Relation: 2015 9th European Conference on Antennas and Propagation (EuCAP)

المؤلفون: Porter, Emily, Coates, Mark, Popovic, Milica

المصدر: IEEE Transactions on Biomedical Engineering; Mar2016, Vol. 63 Issue 3, p530-539, 10p

مصطلحات موضوعية: BREAST imaging, MICROWAVE imaging in medicine, BREAST cancer diagnosis, MICROWAVE antenna arrays, EARLY detection of cancer, MAMMOGRAMS

مستخلص: This study reports on monthly scans of healthy patient volunteers with the clinical prototype of a microwave imaging system. The system uses time-domain measurements, and incorporates a multistatic radar approach to imaging. It operates in the 2–4 GHz range and contains 16 wideband sensors embedded in a hemispherical dielectric radome. The system has been previously tested on tissue phantoms in controlled experiments. With this system prototype, we scanned 13 patients (26 breasts) over an eight-month period, collecting a total of 342 breast scans. The goal of the study described in this paper was to investigate how the system measurements are impacted by multiple factors that are unavoidable in monthly monitoring of human subjects. These factors include both biological variability (e.g., tissue variations due to hormonal changes or weight gain) and measurement variability (e.g., inconsistencies in patient positioning, system noise). For each patient breast, we process the results of the monthly scans to assess the variability in both the raw measured signals and in the generated images. The significance of this study is that it quantifies how much variability should be anticipated when conducting microwave breast imaging of a healthy patient over a longer period. This is an important step toward establishing the feasibility of the microwave radar imaging system for frequent monitoring of breast health. [ABSTRACT FROM PUBLISHER]

: Copyright of IEEE Transactions on Biomedical Engineering is the property of IEEE and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

المؤلفون: Bassi, Matteo, Caruso, Michele, Bevilacqua, Andrea, Neviani, Andrea

المصدر: IEEE Journal of Solid-State Circuits; Jul2013, Vol. 48 Issue 7, p1741-1750, 10p

مصطلحات موضوعية: COMPLEMENTARY metal oxide semiconductors, RADIO frequency, RADAR receiving apparatus, EARLY diagnosis, BREAST cancer diagnosis, INJECTION locked oscillators

مستخلص: A 65-nm CMOS receiver tailored for breast cancer diagnostic imaging is demonstrated for the first time. The receiver shows 31-dB conversion gain, \ NF< 8.6~\ dB, P1~{dB}> -{\ {28}}~{\ {dBm}}, \ IIP3 >-12~\ dBm and \ IIP2>22~\ dBm over a band from 1.75 to 15 GHz. A programmable injection-locked divider generates quadrature LO signals with a I/Q phase error < 1.5 ^\circ over three octaves without requiring any calibration or tuning. The receiver shows a flicker noise corner as low as 40 Hz, achieving a dynamic range of 106 dB. [ABSTRACT FROM AUTHOR]

: Copyright of IEEE Journal of Solid-State Circuits is the property of IEEE and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

المؤلفون: Bassi, Matteo, Caruso, Michele, Khan, Muhammad Saeed, Bevilacqua, Andrea, Capobianco, Antonio-Daniele, Neviani, Andrea

المصدر: IEEE Transactions on Microwave Theory & Techniques; May2013 Part 2, Vol. 61 Issue 5, p2108-2118, 11p

مصطلحات موضوعية: MICROWAVE imaging, PLANAR antennas, BREAST cancer diagnosis, ANTENNA arrays, RADAR antennas, IMAGE processing

مستخلص: The system design of an integrated microwave imaging radar for the diagnostic screening of breasts cancer is presented. A custom integrated circuit implemented in a 65-nm CMOS technology and a pair of patch antennas realized on a planar laminate are proposed as the basic module of the imaging antenna array. The radar operates on the broad frequency range from 2 to 16 GHz with a dynamic range of 107 dB. Imaging experiments carried out on a realistic breast phantom show that the system is capable of detecting tumor targets with a resolution of 3 mm. [ABSTRACT FROM AUTHOR]

: Copyright of IEEE Transactions on Microwave Theory & Techniques is the property of IEEE and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)