Zobrazeno 1 - 10 of 42 pro vyhledávání: '"Ahmed Mamouni"'
1
Application of the FDTD method to determine complex permittivity of dielectric materials at microwave frequencies using a rectangular waveguide
Autor: Ahmed Mamouni, Jaouad Terhzaz, Hassan Ammor, Abdelhadi Assir
Publikováno v: Microwave and Optical Technology Letters
Microwave and Optical Technology Letters, Wiley, 2007, 49, pp.1964-1968. ⟨10.1002/mop.22611⟩
Microwave and Optical Technology Letters, 2007, 49, pp.1964-1968. ⟨10.1002/mop.22611⟩
A new measurement technique is presented to determine the complex permittivity of a dielectric material. The dielectric sample is loaded in a short-circuited rectangular waveguide. The reflection coefficient of the waveguide is measured by Network an
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a34c4c572e46627ed1b00bcefc6c620
https://doi.org/10.1002/mop.22611
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2
Determination of the complex permittivity of dielectric materials at microwave frequency using rectangular waveguide measurements and Newton-Raphson method
Autor: Á. Mediavilla Sánchez, Jaouad Terhzaz, Hassan Ammor, Mohamed Chaibi, Ahmed Mamouni
Publikováno v: Matériaux & Techniques. 94:227-233
In this paper, a simple waveguide measurement technique is presented to determine the complex permittivity of a dielectric material. The dielectric sample is loaded in a short-circuited rectangular waveguide. The reflection coefficient of the wavegui
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::711aac2405566f87ef4f97218e885cff
https://doi.org/10.1051/mattech:2006039
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3
Prediction of the reflection coefficient of shallow buried objects by a microwave technique
Autor: Ahmed Mamouni, L. Furlan‐Achrait, Tuami Lasri
Publikováno v: Microwave and Optical Technology Letters
Microwave and Optical Technology Letters, Wiley, 2004, 42, pp.335-339
Microwave and Optical Technology Letters, 2004, 42, pp.335-339
In this paper, we propose a low-cost microwave technique to characterize shallow subsurface objects. Experiments and simulations are carried out to explore the possibility of predicting the reflection coefficient, according to one or two dimensions,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2497da078e24a145c74ca229ee46de8
https://doi.org/10.1002/mop.20295
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4
Absolute Wighting Functions for Near-Field Microwave Radiometric Applications
Autor: Ahmed Mamouni, K. Ridaoui, B. Bocquet, Tuami Lasri, Yves Leroy
Publikováno v: Journal of Electromagnetic Waves and Applications. 13:1237-1265
Microwave radiometry is being used in order to measure the subsurface temperature in lossy materials—such as living tissues—from the near-field thermal noise emitted in the microwave frequency range. Efforts have been ongoing during the past year
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a20e99ff20cd5522cef68864b66b0e48
https://doi.org/10.1163/156939399x01500
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5
Non-invasive microwave radiometry thermometry
Autor: Ahmed Mamouni, Y. Leroy, Bertrand Bocquet
Publikováno v: Physiological Measurement. 19:127-148
Near-field microwave radiometry and radiometric imaging are non-invasive techniques that are able to provide temperature information at a depth of up to several centimetres in subcutaneous tissues. They are based on the measurement of microwave elect
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89efd15340e5b0aa59a7e53a3f469c17
https://doi.org/10.1088/0967-3334/19/2/001
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6
Water content effect on the dielectric properties of cellular concrete material
Autor: M. D. Belrhiti, Ahmed Mamouni, Seddik Bri, Abdelrhani Nakheli
Publikováno v: Advances in Microwave and Wireless Technologies
Advances in Microwave and Wireless Technologies, 2013, 1, pp.12-15. ⟨10.12966/awmt.07.01.2013⟩
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb890874a49c3a166a773d26f1c85b1c
https://hal.archives-ouvertes.fr/hal-00872092
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7
Near field weighting functions for microwave radiometric signals
Autor: R. Ait Abdelmalek, K. Ridaoui, Ahmed Mamouni, B. Bocquet, Yves Leroy
Publikováno v: IEEE Transactions on Magnetics. 31:2166-2169
After being used extensively for remote sensing, microwave radiometry is also applied for non-invasive thermometry in medicine and industry. Several works have already shown the interest of such technique for thermological applications. This paper pr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8bd124bb121394b94d48fe4b8b64e99a
https://doi.org/10.1109/20.376476
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8
Low SAR planar antenna for multi standard cellular phones
Autor: Mohammed Bouhorma, Ahmed Mamouni, M. Ben Ahmed, Fatiha Elouaai
Publikováno v: European Physical Journal: Applied Physics
European Physical Journal: Applied Physics, EDP Sciences, 2011, 53 (3), ⟨10.1051/epjap/2010100064⟩
European Physical Journal: Applied Physics, EDP Sciences, 2011, 53, pp.33604-1-6. ⟨10.1051/epjap/2010100064⟩
European Physical Journal: Applied Physics, 2011, 53, pp.33604-1-6. ⟨10.1051/epjap/2010100064⟩
International audience; In this paper the design of a multiband compact antenna for the integration into the new multi function mobile phones is presented. The antenna is matched to operate at GSM 920 MHz, WI-Fi 2.4 GHz and HiperLan 5.1 GHz standards
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c3c74a011e922249315d90de759365b6
https://hal.archives-ouvertes.fr/hal-00672789
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9
Near Field Microwave Radiometric Weighting Functions for Multilayered Materials
Autor: Ahmed Mamouni, J.C. van de Velde, P. Dehour, B. Bocquet, Yves Leroy
Publikováno v: Journal of Electromagnetic Waves and Applications. 7:1497-1514
A modal method is used for the determination of the near field weighting functions related to the power transmitted from a rectangular waveguide aperture towards a lossy material and, by reciprocit...
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2dc598fb7df608669222f71b9e69ceee
https://doi.org/10.1163/156939393x00633
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10
A new miniaturized patch antenna for wireless systems : GSM, UMTS, HIPERLAN
Autor: Moahmed Ben Ahmed, Ahmed Mamouni, Mohammed Bouhorma, Fatiha El Ouaai
Publikováno v: Proceedings of the 5th IEEE International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob 2009
5th IEEE International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob 2009
5th IEEE International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob 2009, 2009, Morocco. pp.191-195, ⟨10.1109/WiMob.2009.40⟩
WiMob
In this paper, the design procedure of the multi-band terminal antennas by a single microstrip patch antenna is suggested. To examine the performance of this antenna, a prototype was designed, fabricated and measured. The multi-band central frequenci
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7abddab67ba4c18d170a3e7d41457519
https://hal.archives-ouvertes.fr/hal-00573173
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