Characterization of Microwave Dicke Radiometer for Non-Invasive Tissue Thermometry

Sugumar, Sathya Priya; Krishnamurthy, C. V.; Arunachalam, Kavitha

doi:10.1109/imbioc.2018.8428912

Cited by 1 publication

(1 citation statement)

References 6 publications

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“…Radiometry is a non-invasive breast imaging modality [11], [12], non-toxic and relatively inexpensive, which is based on measuring the power of electromagnetic noise emitted by lossy materials using passive receivers [13]. Several studies carried out in the literature concerning the architectures of the passive microwave radiometer front-end [14]- [16], have shown that the most used is the Dicke radiometer. This type of radiometer consists of a receiving part (antenna) which allows detecting the power of the electromagnetic noise, which is related to the thermal radiation self-produced in the breast tissue, a low noise amplifier, a bandpass filter and a detector to convert RF waves to direct current (DC) signals.…”

Section: Methods 21 Operating Principle Of the Proposed Microwave Rad...mentioning

confidence: 99%

A novel miniaturized radiometer front-end for early breast cancer detection using ultra-wideband flexible antenna

Elouerghi,

Khomsi,

Bellarbi

et al. 2024

Bulletin EEI

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This article introduces a new design of the front-end part of a passive and miniature radiometer, which has been developed to detect breast cancer at an early stage, by measuring temperature in deep mammary tissues. The design and simulation of each element of the microwave radiometer are carried out using computer simulation technology microwave (CST MWS) software. The proposed measurement system consists of a miniaturized ultra-wideband (UWB) flexible antenna operating in the S-band (2-4 GHz), a breast phantom, a low noise amplifier (LNA), a bandpass filter, and a radio frequency (RF) power detector. These components were combined with active circuits to build the front-end system using the co-simulation modules provided by the CST MWS. The method is based on the concept that the virtually created tumor increases the temperature inside the breast phantom, and to detect the abnormality, we applied the proposed radiometer front-end on breast phantom to measure the gain variation. The results demonstrated that the design of the proposed miniaturized radiometer has promising performance in terms of stability and gain variation, indeed, the difference in maximum gain |ΔGmax| measured between abnormal and healthy phantom is about 0.92 dB at 2.75 GHz. This indicates its potential for detecting breast tumors.

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Section: Methods 21 Operating Principle Of the Proposed Microwave Rad...mentioning

confidence: 99%

A novel miniaturized radiometer front-end for early breast cancer detection using ultra-wideband flexible antenna

Elouerghi,

Khomsi,

Bellarbi

et al. 2024

Bulletin EEI

View full text Add to dashboard Cite

show abstract

Characterization of Microwave Dicke Radiometer for Non-Invasive Tissue Thermometry

Cited by 1 publication

References 6 publications

A novel miniaturized radiometer front-end for early breast cancer detection using ultra-wideband flexible antenna

A novel miniaturized radiometer front-end for early breast cancer detection using ultra-wideband flexible antenna

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