Zobrazeno 1 - 10 of 53 pro vyhledávání: '"Ph. Gelin"'
1
Theoretical and experimental determination of the permeability tensor components of magnetized ferrites at microwave frequencies
Autor: M. Le Floc'h, Patrick Queffelec, Ph. Gelin, Stéphane Mallégol
Publikováno v: IEEE Transactions on Magnetics. 39:2003-2008
We compare the diagonal /spl mu/ and off-diagonal /spl kappa/ permeability tensor components of magnetized polycrystalline ferrites given by the theoretical model of Gelin and Berthou with experimental ones at microwave frequencies. We used a broad-b
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ce62159ec7e7fa7a928b784e559b6fb3
https://doi.org/10.1109/tmag.2003.812709
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2
Extension of the effective medium approximation for determination of the permeability tensor of unsaturated polycrystalline ferrites
Autor: Ph. Gelin, D. Bariou, M. Le Floc'h, Patrick Queffelec
Publikováno v: IEEE Transactions on Magnetics. 37:3885-3891
This paper presents a physical model of the properties of polycrystalline ferrites below magnetic saturation, a common condition in many applications of ferrites in microwave devices. The properties are mainly characterized through the elements of th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5a15d452ee12a7ab6738a3b9fd3d408d
https://doi.org/10.1109/20.966123
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3
Experimental radiation pattern of dipole inside metallic photonic bandgap material
Autor: P. Pouliguen, Gregory Poilasne, Laurent Desclos, Kourosh Mahdjoubi, C. Terret, Ph. Gelin
Publikováno v: Microwave and Optical Technology Letters. 22:10-16
This paper presents experimental results on a dipole antenna placed inside metallic photonic bandgap materials. Different structures are proposed with single or mixed MPBG configurations. These results demonstrate that a radiated beam can be shaped b
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fbe4eb3926de33e3d845cd213c511f33
https://doi.org/10.1002/(sici)1098-2760(19990705)22:1<10::aid-mop4>3.0.co
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4
Influence of metallic photonic bandgap (MPBG) materials interface on dipole radiation characteristics
Autor: P. Pouliguen, Gregory Poilasne, C. Terret, Ph. Gelin, Laurent Desclos, Kourosh Mahdjoubi
Publikováno v: Microwave and Optical Technology Letters. 18:407-410
The MPBG interface influence on half-wavelength dipole radiation characteristics—radiation pattern and input impedance—is analyzed. This study concerns frequency operation within or without an MPBG bandgap. A first analysis has been performed by
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0a5c3ad17e9648323b347c924ecbf907
https://doi.org/10.1002/(sici)1098-2760(19980820)18:6<407::aid-mop12>3.0.co
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8
A broadband permeameter for 'in situ' measurements of rectangular samples
Autor: Erwan Salahun, Patrick Queffelec, M. Le Floc'h, Ph. Gelin
Publikováno v: IEEE Transactions on Magnetics. 37:2743-2745
The measurement method presented here permits the determination of the complex permeability /spl mu/* and permittivity /spl epsi/* of rectangular samples of various thicknesses (0.1 /spl mu/m-1800 /spl mu/m) over the (130 MHz-7 GHz) frequency band. T
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::592524eaecc4dad8cafe193837d1f8c1
https://doi.org/10.1109/20.951293
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9
Computation of near-field microwave radiometric signals: definition and experimental verification
Autor: J. C. Van De Velde, A. Mamouni, Ph. Gelin, B. Bocquet, Y. Leroy
Publikováno v: IEEE Transactions on Microwave Theory and Techniques. 39:124-132
A method is developed for computing the near field transmitted by a monomode rectangular waveguide aperture into a homogeneous lossy material. The principle of this method is discussed, and its results are verified by experiments both in an active pr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::959d6fa3845f840e63718d79fb291c89
https://doi.org/10.1109/22.64615
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