A. Mamouni

Hôpital Cardiologique du Haut-Lévêque

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Y. Leroy

Carrier (United States)

J.C. van de Velde

Institut d'électronique de microélectronique et de nanotechnologie

B. Bocquet

Université de Lille

Mohammed Bouhorma

Abdelmalek Essaâdi University

Seddik Bri

Université Moulay Ismail de Meknes

T. Lasri

Centre National de la Recherche Scientifique

Larbi Bellarbi

Mohammed V University

M.H. Habibi

Université Ibn-Tofail

Jean-Christophe Cousin

Institut Polytechnique de Paris

D. Glay

Centre National de la Recherche Scientifique

Cooperative Institutions

Centre National de la Recherche Scientifique

Institut d'électronique de microélectronique et de nanotechnologie

Université de Lille

Inserm

Université d'Artois

École Centrale de Lille

Université Moulay Ismail de Meknes

Centre de Gestion Scientifique

Ecole Mohammadia d'Ingénieurs

Hôpital Cardiologique du Haut-Lévêque

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On Possibilities of Thermal Pattern Recognition by Correlation Microwave Thermography

Larbi Bellarbi A. Mamouni J.C. van de Velde Y. Leroy

New results concern Correlation Microwave Thermography, a radiometric process, able to complement Microwave Thermography in biomedical applications. Experimental data point out a spatial resolution which, for steep thermal gradients, can reach about 1 mm for a difference of temperature ΔT ⩽ 1°C. Consequently, Thermal Pattern Recognition can be improved with this method, mainly in the monitoring of Hyperthermia.

Thermography

Microwave Imaging

10.1109/euma.1984.333397

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A Modified Radiometer for Temperature and Microwave Properties Measurements of Biological Substances

A. Mamouni F. Bliot Y. Leroy Y Moschetto

The use of radiometers for biomedical applications needs a coherent understanding of thermal signals emitted by the tissues. In this paper, we show first, that some precautions have to be taken when measuring a temperature by the classical radiometric method. For instance, the signal emitted by a lossy material depends on its temperature, permittivity and thickness. This remark allows us to find out a new method for measuring microwave permittivity of liquids when using a Dicke radiometer. We propose a modified radiometric method to determine directly the temperature of the material whatever its reflection coefficient. The applicability of this method is tested with a X band set-up including FET microwave amplifiers. Possibilities of using probes for in situ temperature measurements are discussed.

Radiometry

Microwave radiometer

Reflection coefficient

Lossy compression

Reflection

Temperature coefficient

10.1109/euma.1977.332383

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Citations (31)

New correlation radiometer for microwave thermography

Electronics Letters (1981)

A. Mamouni J.C. van de Velde Y. Leroy

We describe a new radiometric method capable of reaching a better control of the volume of the tissue under investigation in microwave thermography (this technique is mainly used in biomedical applications). Our process is based on the fact that two (or several) probes with a volume under investigation in common are collecting thermal noise signals which are correlated.

Thermography

Microwave radiometer

Microwave Imaging

Radiometry

10.1049/el:19810388

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Citations (33)

Caractérisation d'objets enfouis - Estimation du coefficient de réflexion

HAL (Le Centre pour la Communication Scientifique Directe) (2003)

Latifa Achrait-Furlan T. Lasri A. Mamouni

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Dielectric constant determination of liquid using rectangular waveguide structure combined with EM simulation

HAL (Le Centre pour la Communication Scientifique Directe) (2012)

M. D. Belrhiti Seddik Bri Abdelrhani Nakheli M. Haddad A. Mamouni

The present study aims to contribute for the establ ishment and validation of numerical simulation of electromagnetic materials complex permittivity usin g a rectangular wave guide structure. For this purp ose, the simulated values of complex permittivity for number of liquids have been determined in the X and Ku ba nds using software Ansoft HFSS simulator. The simulated results are discussed and compared with results of the literature and the calculated data using theoretica l Debye’s model. Finally, the percentages of errors between the simulated and theoretical results are estimated. Th e comparison shows a good convergence, which guarantees the application of the adopted methodologies for the di electric behavior prediction of different liquid ma terials in the frequency range [8,2 ‐ 18] GHz.

Constant (computer programming)

Waveguide

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Computation of SAR for Two Antennas Used in Mobile Communication Systems: Monopole and Patch

New Technologies, Mobility and Security (2008)

Mohammed Bouhorma Fatiha Elouaai A. Mamouni

This paper is a comparative study of several antennas commonly used in cellular telephones. These include a monopole and a patch antenna. Each one of these structures is modeled and numerically tested using HFSS code. The testing procedure involves antenna simulation in the proximity of the human head. The behaviour of each antenna is evaluated for variable distances from the head geometry. Continuous waveform, representative of the sources used in mobile telephones, (250 mW) is used as the form of the antenna excitation. The SAR levels for the head tissues are calculated for and with accordance to the two currently accepted standards: Federal Communications Commission (FCC) and International Commission on Non-Ionizing Radiation Protection (ICNIRP). The computed SAR levels within each of the considered tissues vary for the two antennas under investigation.

HFSS

Human head

10.1109/ntms.2008.ecp.31

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Citations (2)

Microwave thermometry in intracranial pathology.

PubMed (1982)

Pierre Thouvénot J. Robert A. Mamouni C. Renard

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Citations (5)

Distribution du SAR dans un phantom à proximité d'un téléphone cellulaire aux fréquences de 900 et 1800 MHz