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An ultrawideband (UWB) radar-based breast cancer detection system, which is composed of complementary metal–oxide–semiconductor integrated circuits, is presented. This system includes Gaussian monocycle pulse (GMP) generation circuits, switching (SW) matrix circuits, equivalent-time sampling circuits, and a compact UWB antenna array. During the detection process, the GMP signal with the center frequency...
A new single pole eight throw (SP8T) CMOS switching matrix has been developed to replace conventional large mechanical switches, for portable ultra wideband (UWB) breast cancer imaging system. The SP8T switch has an minimum input and output matching bandwidth of 0–17 GHz with an average insertion loss of 3 to 10 dB from 2 to 17 GHz and power consumption of 1.2 mW. By utilizing two of these switching...
A study of the Ultra-wideband (UWB) microwave image reconstruction by robust capon beamforming (RCB) algorithm for detecting the early malignant tumor in the human breast is presented. In this study, the tumor detection in a two dimensional breast model of the breast organisms is numerically carried out via the finite difference time domain method (FDTD). The image reconstructed with backscattered...
An ultra-wideband (UWB) bow-tie antenna integrated with a balun was fabricated for breast cancer detection. The bandwidth and the center frequency of the antenna were 2.4 GHz and 4 GHz, respectively. A target which was located at the depth of 44 mm in a dielectric material was detected by confocal algorism.
A study on the Ultra-Wideband (UWB) microwave imaging for detecting the malignant tumor in the human breast is presented. The planer two-dimensional breast model is used to simulate the microwave propagation in the breast by the Finite Difference Time Domain method (FDTD). The confocal algorithm is employed to reconstruct the breast image to show the tumor information involving its size and the location...
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