Monostatic microwave imaging of cancerous breast phantom with a frequency to time domain conversion technique

被引：1
|
作者：
Asok, Athul O. [1 ]
Gokul Nath, S. J. [1 ]
Dey, Sukomal [1 ]
机构：
[1] Indian Inst Technol Palakkad, Dept Elect Engn, Palakkad 678557, India
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2024年 / 66卷 / 02期
关键词：
Antipodal Vivaldi Antenna (AVA); Delay and Sum (DAS); microwave imaging; phantom; time domain; ultra-wideband (UWB); Vector Network Analyzer (VNA);
D O I：
10.1002/mop.34054
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The letter presents a method of frequency to time domain conversion of Scattering Parameter data for microwave imaging applications. The time to frequency domain conversion was initially tested in the MATLAB. The testing was conducted in a realistic microwave imaging environment with an antenna and a heterogeneous breast phantom. Note that, the time domain signal obtained from the Vector Network Analyzer (VNA) as well as the time domain signal obtained with the introduced process is similar indicating efficiency of the proposed method. An ultra-wideband (UWB) signal is transmitted from the transmitting Antipodal Vivaldi Antenna to the breast phantom and the received signals are collected by the same antenna over a monostatic process. A total of 36 antenna rotations were considered while scanning the phantom from various orientations. All the data stored in the VNA is extracted and the proposed frequency to time domain conversion technique was applied to it. Finally, the Delay and Sum beamforming algoirithm was used to reconstruct the target image.
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页数：5
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