Département Micro-ondes

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ENSEIGNEMENT
LTCC

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Les dernières publications du département
Communication dans un congrès
Tlili Malika, Sinou Maïna, Kärnfelt Camilla, Bourreau Daniel, Peden Alain
Micro heat pipe design and fabrication on LTCC
ESTC2018: Electronics System-Integration Technology Conference, Sep 2018, Dresde, Germany. Proceedings ESTC2018: Electronics System-Integration Technology Conference, 2018
Bibtext :
@inproceedings{tlili:hal-01881235,
TITLE = {{Micro heat pipe design and fabrication on LTCC}},
AUTHOR = {Tlili, Malika and Sinou, Ma{\"i}na and K{\"a}rnfelt, Camilla and Bourreau, Daniel and Peden, Alain},
URL = {https://hal.archives-ouvertes.fr/hal-01881235},
BOOKTITLE = {{ESTC2018: Electronics System-Integration Technology Conference}},
ADDRESS = {Dresde, Germany},
HAL_LOCAL_REFERENCE = {19151},
PAGES = {.},
YEAR = {2018},
MONTH = Sep,
KEYWORDS = {Micro heat pipe (MHP) ; Low Temperature Co-fired Ceramics (LTCC) ; Sacrifcial volume material (SVM) ; Thermal management},
HAL_ID = {hal-01881235},
HAL_VERSION = {v1},
}
Endnote :
%0 Conference Proceedings
%T Micro heat pipe design and fabrication on LTCC
%+ Département Micro-Ondes (MO)
%+ Lab-STICC_IMTA_MOM_DIM
%+ Lab-STICC_IMTA_MOM_PIM
%A Tlili, Malika
%A Sinou, Maïna
%A Kärnfelt, Camilla
%A Bourreau, Daniel
%A Peden, Alain
%< avec comité de lecture
%Z 19151
%( Proceedings ESTC2018: Electronics System-Integration Technology Conference
%B ESTC2018: Electronics System-Integration Technology Conference
%C Dresde, Germany
%P .
%8 2018-09-18
%D 2018
%K Micro heat pipe (MHP)
%K Low Temperature Co-fired Ceramics (LTCC)
%K Sacrifcial volume material (SVM)
%K Thermal management
%Z Engineering Sciences [physics]/ElectronicsConference papers
%X This paper presents work on micro heat pipe (MHP) fabrication in Low Temperature Cofired Ceramics (LTCC) modules for cooling purpose. The MHPs are fabricated in a 10 layer structure using ESL41020 tape. Different fabrication settings have been tested to minimize swelling and groove deformation. The best result is obtained by using fugitive tape, extended firing profile, and hot lamination at 50°C for 5 minutes with 70 bar pressure.
%G English
%L hal-01881235
%U https://hal.archives-ouvertes.fr/hal-01881235
%~ INSTITUT-TELECOM
%~ TELECOM-BRETAGNE
%~ CNRS
%~ UNIV-BREST
%~ UNIV-UBS
%~ ENIB
%~ LAB-STICC
%~ IMT-ATLANTIQUE
%~ LAB-STICC_IMTA_MOM_PIM
%~ LAB-STICC_IMTA_MOM_DIM
%~ IMTA_MO
%~ LAB-STICC_IMTA
Communication dans un congrès
Barros Cardoso da Silva Luciano, Benaddi Tarik, Franck Laurent
A Design Method of Cognitive Overlay Links for Satellite Communications
ASMS 2018: 9th Advanced Satellite Multimedia systems conference, Sep 2018, Berlin, Germany. Proceedings ASMS 2018: 9th Advanced Satellite Multimedia systems conference, 2018
Bibtext :
@inproceedings{barroscardosodasilva:hal-01879094,
TITLE = {{A Design Method of Cognitive Overlay Links for Satellite Communications}},
AUTHOR = {Barros Cardoso Da Silva, Luciano and Benaddi, Tarik and Franck, Laurent},
URL = {https://hal.archives-ouvertes.fr/hal-01879094},
BOOKTITLE = {{ASMS 2018: 9th Advanced Satellite Multimedia systems conference}},
ADDRESS = {Berlin, Germany},
HAL_LOCAL_REFERENCE = {19219},
PAGES = {.},
YEAR = {2018},
MONTH = Sep,
KEYWORDS = {Satellite communications ; Cognitive Radio ; Overlay paradigm ; Dirty paper coding ; Trellis precoding ; Flexible playloads},
HAL_ID = {hal-01879094},
HAL_VERSION = {v1},
}
Endnote :
%0 Conference Proceedings
%T A Design Method of Cognitive Overlay Links for Satellite Communications
%+ Département Micro-Ondes (MO)
%+ Lab-STICC_IMTA_CID_TOMS
%+ Airbus Defence and Space (AIRBUS)
%A Barros Cardoso Da Silva, Luciano
%A Benaddi, Tarik
%A Franck, Laurent
%< avec comité de lecture
%Z 19219
%( Proceedings ASMS 2018: 9th Advanced Satellite Multimedia systems conference
%B ASMS 2018: 9th Advanced Satellite Multimedia systems conference
%C Berlin, Germany
%P .
%8 2018-09-10
%D 2018
%K Satellite communications
%K Cognitive Radio
%K Overlay paradigm
%K Dirty paper coding
%K Trellis precoding
%K Flexible playloads
%Z Engineering Sciences [physics]/ElectronicsConference papers
%X In this paper, we present a method to design cognitive overlay links for satellite communications, in order to allow the primary and the cognitive users to transmit concurrently while using efficiently the available power resources. By means of trellis shaping based dirty paper coding (DPC) and superposition techniques, numerous schemes are investigated in various realistic scenarios, and different tradeoffs between power efficiency vs complexity are made. By simulations, we first show that we are able to design schemes where the primary user bit error rate (BER) is maintained as in the absence of the cognitive user interference. Secondly, thanks to trellis precoding and an appropriate constellation expansion, we show that the BER of the cognitive user can be made within 1dB of corresponding the Gaussian channel BER.
%G English
%L hal-01879094
%U https://hal.archives-ouvertes.fr/hal-01879094
%~ CNRS
%~ UNIV-BREST
%~ UNIV-UBS
%~ INSTITUT-TELECOM
%~ ENIB
%~ LAB-STICC
%~ IMT-ATLANTIQUE
%~ LAB-STICC_IMTA_CID_TOMS
%~ IMTA_MO
%~ LAB-STICC_IMTA
Communication dans un congrès
Shehata Mohamed, Crussière Matthieu, Hélard Maryline, Pajusco Patrice
Leakage based users selection for hybrid beamforming in millimeterwave MIMO
PIMRC18: 29th Annual IEEE International symposium on personnal, indoor and mobile radio communications, Sep 2018, Bologne, Italy. Proceedings PIMRC18: 29th Annual IEEE International symposium on personnal, indoor and mobile radio communications, 2018
Bibtext :
@inproceedings{shehata:hal-01881238,
TITLE = {{Leakage based users selection for hybrid beamforming in millimeterwave MIMO}},
AUTHOR = {Shehata, Mohamed and Crussi{\`e}re, Matthieu and H{\'e}lard, Maryline and Pajusco, Patrice},
URL = {https://hal.archives-ouvertes.fr/hal-01881238},
BOOKTITLE = {{PIMRC18: 29th Annual IEEE International symposium on personnal, indoor and mobile radio communications}},
ADDRESS = {Bologne, Italy},
HAL_LOCAL_REFERENCE = {19155},
PAGES = {.},
YEAR = {2018},
MONTH = Sep,
KEYWORDS = {Multi-user MIMO ; MmWave ; Users selection ; Condition Number ; Signal to Leakage and Noise Ratio (SNLR) ; Hybrid Beamforming},
HAL_ID = {hal-01881238},
HAL_VERSION = {v1},
}
Endnote :
%0 Conference Proceedings
%T Leakage based users selection for hybrid beamforming in millimeterwave MIMO
%+ Institut National des Sciences Appliquées - Rennes (INSA Rennes)
%+ Lab-STICC_IMTA_MOM_PIM
%+ Département Micro-Ondes (MO)
%A Shehata, Mohamed
%A Crussière, Matthieu
%A Hélard, Maryline
%A Pajusco, Patrice
%< avec comité de lecture
%Z 19155
%( Proceedings PIMRC18: 29th Annual IEEE International symposium on personnal, indoor and mobile radio communications
%B PIMRC18: 29th Annual IEEE International symposium on personnal, indoor and mobile radio communications
%C Bologne, Italy
%P .
%8 2018-09-09
%D 2018
%K Multi-user MIMO
%K MmWave
%K Users selection
%K Condition Number
%K Signal to Leakage and Noise Ratio (SNLR)
%K Hybrid Beamforming
%Z Engineering Sciences [physics]/ElectronicsConference papers
%X Millimeter-Wave (mmWave) channels are characterized as being sparse and Line of Sight (LoS) dominated. Applying hybrid beamforming in mmWave systems guarantees Multi-User (MU) transmission with low hardware requirements. Zero Forcing (ZF) precoding can be utilized at the digital layer of the hybrid beamformer to mitigate the Inter User Interference (IUI). However, due to the sparse nature of the mmWave channels, a ZF precoder may provide limited performance due to the highly correlated MU channel matrix. The aim of this paper is hence to address the interference mitigation problem in the analog domain before handling it at the ZF digital level. Signal to Leakage and Noise Ration (SLNR) based users selection algorithm is introduced for maximizing the Spectral Efficiency (SE) of the system with low complexity requirements.We finally highlight by simulations the potential gains achieved by the introduced interference aware users selection approach.
%G English
%L hal-01881238
%U https://hal.archives-ouvertes.fr/hal-01881238
%~ TELECOM-BRETAGNE
%~ INSTITUT-TELECOM
%~ CNRS
%~ UNIV-BREST
%~ UNIV-UBS
%~ ENIB
%~ LAB-STICC
%~ IMT-ATLANTIQUE
%~ LAB-STICC_IMTA_MOM_PIM
%~ IMTA_MO
%~ LAB-STICC_IMTA
Article dans une revue
Antonini Giulio, Astorino Maria Denise, Ferranti Francesco, Frezza Fabrizio, Tedeschi Nicola
Efficient design of metamaterial absorbers using parametric macromodels
Applied Computational Electromagnetics Society Journal, 2018, 33 (7)
Bibtext :
@article{antonini:hal-01865235,
TITLE = {{Efficient design of metamaterial absorbers using parametric macromodels}},
AUTHOR = {Antonini, Giulio and Astorino, Maria Denise and Ferranti, Francesco and Frezza, Fabrizio and Tedeschi, Nicola},
URL = {https://hal.archives-ouvertes.fr/hal-01865235},
JOURNAL = {{Applied Computational Electromagnetics Society Journal}},
HAL_LOCAL_REFERENCE = {19160},
VOLUME = {33},
NUMBER = {7},
PAGES = {.},
YEAR = {2018},
MONTH = Jul,
HAL_ID = {hal-01865235},
HAL_VERSION = {v1},
}
Endnote :
%0 Journal Article
%T Efficient design of metamaterial absorbers using parametric macromodels
%+ Università degli Studi dell'Aquila [L'Aquila] (UNIVAQ.IT)
%+ Universita di Roma La Sapienza (University Roma) (UR)
%+ Lab-STICC_IMTA_MOM_DIM
%+ Département Micro-Ondes (MO)
%A Antonini, Giulio
%A Astorino, Maria Denise
%A Ferranti, Francesco
%A Frezza, Fabrizio
%A Tedeschi, Nicola
%< avec comité de lecture
%Z 19160
%J Applied Computational Electromagnetics Society Journal
%V 33
%N 7
%P .
%8 2018-07
%D 2018
%Z Engineering Sciences [physics]/ElectronicsJournal articles
%X Metamaterial absorbers have recently attracted a lot of interest for applications spanning from microwave to terahertz, near infrared and optical frequencies, such as electromagnetic compatibility, thermal emitters, solar cells and micro- bolometers. In this paper, a procedure for the efficient design of metamaterial absorbers based on parametric macromodels is presented. These models are used to describe the frequency-domain behaviour of complex systems as a function of frequency and design parameters (e.g., layout features). Parametric macromodels are very efficient and can be used to speed up the design fow in comparison with using electromagnetic simulators for design tasks. The use of quasi-random sequences for the sampling of the design space and of radial basis functions and polynomial functions for the model construction is proposed. Numerical results validate the efficiency and accuracy of the proposed technique for multiple optimizations.
%G English
%L hal-01865235
%U https://hal.archives-ouvertes.fr/hal-01865235
%~ CNRS
%~ UNIV-UBS
%~ INSTITUT-TELECOM
%~ ENIB
%~ LAB-STICC
%~ UNIV-BREST
%~ IMT-ATLANTIQUE
%~ IMTA_MO
%~ LAB-STICC_IMTA_MOM_DIM
%~ LAB-STICC_IMTA
Communication dans un congrès
Shehata Mohamed, Crussière Matthieu, Hélard Maryline, Pajusco Patrice
Hybrid beamforming for muli-user MISO channels with equal gain transmission: a robust and spectral efficient approach
ICT2018: 25th International Conference on Telecommunications, Jun 2018, Saint-Malo, France. Proceedings ICT2018: 25th International Conference on Telecommunications, 2018
Bibtext :
@inproceedings{shehata:hal-01857310,
TITLE = {{Hybrid beamforming for muli-user MISO channels with equal gain transmission: a robust and spectral efficient approach}},
AUTHOR = {Shehata, Mohamed and Crussi{\`e}re, Matthieu and H{\'e}lard, Maryline and Pajusco, Patrice},
URL = {https://hal.archives-ouvertes.fr/hal-01857310},
BOOKTITLE = {{ICT2018: 25th International Conference on Telecommunications}},
ADDRESS = {Saint-Malo, France},
HAL_LOCAL_REFERENCE = {19157},
PAGES = {.},
YEAR = {2018},
MONTH = Jun,
KEYWORDS = {Blockage ; MmWave ; Hybrid beamforming ; Analog Beamsteering ; Multi-user MISO},
HAL_ID = {hal-01857310},
HAL_VERSION = {v1},
}
Endnote :
%0 Conference Proceedings
%T Hybrid beamforming for muli-user MISO channels with equal gain transmission: a robust and spectral efficient approach
%+ Institut National des Sciences Appliquées - Rennes (INSA Rennes)
%+ Lab-STICC_IMTA_MOM_PIM
%+ Département Micro-Ondes (MO)
%A Shehata, Mohamed
%A Crussière, Matthieu
%A Hélard, Maryline
%A Pajusco, Patrice
%< avec comité de lecture
%Z 19157
%( Proceedings ICT2018: 25th International Conference on Telecommunications
%B ICT2018: 25th International Conference on Telecommunications
%C Saint-Malo, France
%P .
%8 2018-06-25
%D 2018
%K Blockage
%K MmWave
%K Hybrid beamforming
%K Analog Beamsteering
%K Multi-user MISO
%Z Engineering Sciences [physics]/ElectronicsConference papers
%X Millimeter-Wave (mmWave) systems are considered as one promising potential to solve the scarce spectrumdeadlock suffered by the current wireless networks. However, operating at such high frequencies is obstructed bymany issues. Two of themain key challenges are the hardware complexity limiting the implementation of fully digital beamforming system, and the frequent propagation ray blockage due to the small wavelength. Recently a lot of research has thus been dedicated to hybrid beamforming solutions to adapt with hardware limitations, but also trying to solve the ray blockage problem. In this paperwe introduce a novel hybrid beamforming framework that captures the diversity of the multipath sparse channel in the analog domain using the Equal Gain Transmission (EGT) spatial precoding scheme. We first highlight how such beamformer can enhance both the Spectral Efficiency (SE) and the robustness of the communication system. Then, we unleash the potentials of the Digital Signal Processing (DSP) layer to suppress the Multi-User (MU) interference using the Zero Forcing (ZF) approach. We introduce a generic and realistic channel blockage model to evaluate the robustness of our solution. We show through simulations that our algorithmachieves higher performance in terms of SE and robustness to blockage compared to the existing techniques in the literature.
%G English
%L hal-01857310
%U https://hal.archives-ouvertes.fr/hal-01857310
%~ CNRS
%~ UNIV-UBS
%~ INSTITUT-TELECOM
%~ ENIB
%~ LAB-STICC
%~ UNIV-BREST
%~ IMT-ATLANTIQUE
%~ LAB-STICC_IMTA_MOM_PIM
%~ IMTA_MO
%~ LAB-STICC_IMTA
Article dans une revue
Van Nechel Evi, Ferranti Francesco, Rolain Yves, Lataire John
Model-driven design of microwave filters based on scalable circuit models
IEEE Transactions on Microwave Theory and Techniques, Institute of Electrical and Electronics Engineers, 2018, pp.1 - 7. 〈10.1109/TMTT.2018.2842197〉
Bibtext :
@article{vannechel:hal-01857312,
TITLE = {{Model-driven design of microwave filters based on scalable circuit models}},
AUTHOR = {Van Nechel, Evi and Ferranti, Francesco and Rolain, Yves and Lataire, John},
URL = {https://hal.archives-ouvertes.fr/hal-01857312},
JOURNAL = {{IEEE Transactions on Microwave Theory and Techniques}},
HAL_LOCAL_REFERENCE = {19159},
PUBLISHER = {{Institute of Electrical and Electronics Engineers}},
NUMBER = {99},
PAGES = {1 - 7},
YEAR = {2018},
MONTH = Jun,
DOI = {10.1109/TMTT.2018.2842197},
KEYWORDS = {Defected ground structure (DGS) ; Efficient design ; Microwave filter design ; Scalable circuit models},
HAL_ID = {hal-01857312},
HAL_VERSION = {v1},
}
Endnote :
%0 Journal Article
%T Model-driven design of microwave filters based on scalable circuit models
%+ Department ELEC (Vrije Universiteit Brussel)
%+ Lab-STICC_IMTA_MOM_DIM
%+ Département Micro-Ondes (MO)
%A Van Nechel, Evi
%A Ferranti, Francesco
%A Rolain, Yves
%A Lataire, John
%< avec comité de lecture
%Z 19159
%@ 0018-9480
%J IEEE Transactions on Microwave Theory and Techniques
%I Institute of Electrical and Electronics Engineers
%N 99
%P 1 - 7
%8 2018-06
%D 2018
%R 10.1109/TMTT.2018.2842197
%K Defected ground structure (DGS)
%K Efficient design
%K Microwave filter design
%K Scalable circuit models
%Z Engineering Sciences [physics]/ElectronicsJournal articles
%X Most microwave filters are currently designed using direct electromagnetic (EM) optimization. This method holds several disadvantages regarding the provided physical insight to designers and duration of the optimization process. To circumvent these drawbacks, we propose a filter design based on scalable circuit models. This model-driven design competes with EM optimization by maintaining the accuracy of the optimization results while providing a very significant speedup and gaining physical insight on the EM working mechanism of the filter of interest. This paper discusses the advantages of using the proposed model-driven design by the illustration on a defected ground structure filter. A scalable equivalent circuit model is used in the design procedure to provide physical insight to the designer and to speed up the design process enormously.
%G English
%L hal-01857312
%U https://hal.archives-ouvertes.fr/hal-01857312
%~ CNRS
%~ UNIV-UBS
%~ INSTITUT-TELECOM
%~ ENIB
%~ LAB-STICC
%~ UNIV-BREST
%~ IMT-ATLANTIQUE
%~ LAB-STICC_IMTA_MOM_DIM
%~ IMTA_MO
%~ LAB-STICC_IMTA
Communication dans un congrès
Libessart Erwan, Arzel Matthieu, Lahuec Cyril, Andriulli Francesco
40 Gop/S/mm² Fixed-Point Operators for Brain Computer Interface in 65nm CMOS
2018 IEEE International Symposium on Circuits and Systems (ISCAS), May 2018, Florence, Italy. 2018, 〈10.1109/ISCAS.2018.8351028〉
Bibtext :
@inproceedings{libessart:hal-01813164,
TITLE = {{40 Gop/S/mm${}^2$ Fixed-Point Operators for Brain Computer Interface in 65nm CMOS}},
AUTHOR = {Libessart, Erwan and Arzel, Matthieu and Lahuec, Cyril and Andriulli, Francesco},
URL = {https://hal.archives-ouvertes.fr/hal-01813164},
BOOKTITLE = {{ 2018 IEEE International Symposium on Circuits and Systems (ISCAS)}},
ADDRESS = {Florence, Italy},
HAL_LOCAL_REFERENCE = {18759},
PAGES = {.},
YEAR = {2018},
MONTH = May,
DOI = {10.1109/ISCAS.2018.8351028},
KEYWORDS = {BCI ; Fixed-Point Operators ; ASIC ; Reciprocal ; Inverse square root},
PDF = {https://hal.archives-ouvertes.fr/hal-01813164/file/iscas18.pdf},
HAL_ID = {hal-01813164},
HAL_VERSION = {v1},
}
Endnote :
%0 Conference Proceedings
%T 40 Gop/S/mm² Fixed-Point Operators for Brain Computer Interface in 65nm CMOS
%+ Lab-STICC_IMTA_MOM_PIM
%+ Département Electronique (ELEC)
%+ Lab-STICC_IMTA_CACS_IAS
%+ Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (Lab-STICC)
%+ Département Micro-Ondes (MO)
%A Libessart, Erwan
%A Arzel, Matthieu
%A Lahuec, Cyril
%A Andriulli, Francesco
%< avec comité de lecture
%Z 18759
%B 2018 IEEE International Symposium on Circuits and Systems (ISCAS)
%C Florence, Italy
%P .
%8 2018-05-27
%D 2018
%R 10.1109/ISCAS.2018.8351028
%K BCI
%K Fixed-Point Operators
%K ASIC
%K Reciprocal
%K Inverse square root
%Z Engineering Sciences [physics]/Electronics
%Z Engineering Sciences [physics]/Signal and Image processingConference papers
%X The performance of non-invasive Brain-Computer Interface (BCI) depends on the computing performance of the system which solves the inverse problem. So the number of basic operations computed per second determines the BCI's resolution. An architecture with pipelined and parallelized flow is then required, and each operator in this architecture must be optimised to reach the highest possible computing performance. This paper presents the implementation of a fixed-point reciprocal and an inverse square root operators for the STMicroelectronics 65 nm CMOS technology. This paper follows previous works that optimise these operators on FPGA target. Each operator reaches a computing performance of about 40 Gop/s/mm², which improves the literature results by a factor of 5. Thus, this works fits well for portable and high performance BCI applications.
%G English
%2 https://hal.archives-ouvertes.fr/hal-01813164/document
%2 https://hal.archives-ouvertes.fr/hal-01813164/file/iscas18.pdf
%L hal-01813164
%U https://hal.archives-ouvertes.fr/hal-01813164
%~ INSTITUT-TELECOM
%~ TELECOM-BRETAGNE
%~ CNRS
%~ UNIV-UBS
%~ ENIB
%~ LAB-STICC
%~ UNIV-BREST
%~ LAB-STICC_IMTA_MOM_PIM
%~ IMTA_ELEC
%~ IMTA_MO
%~ LAB-STICC_IMTA_CACS_IAS
%~ IMT-ATLANTIQUE
%~ LAB-STICC_IMTA
Article dans une revue
Virte Martin, Ferranti Francesco
Chaos in solarity VCSELs: exploring the parameter space with advanced sampling
Journal of Lightwave Technology, Institute of Electrical and Electronics Engineers (IEEE)/Optical Society of America(OSA), 2018, 36 (9), pp.1601 - 1607. 〈10.1109/JLT.2017.2784847〉
Bibtext :
@article{virte:hal-01809670,
TITLE = {{Chaos in solarity VCSELs: exploring the parameter space with advanced sampling}},
AUTHOR = {Virte, Martin and Ferranti, Francesco},
URL = {https://hal.archives-ouvertes.fr/hal-01809670},
JOURNAL = {{Journal of Lightwave Technology}},
HAL_LOCAL_REFERENCE = {18818},
PUBLISHER = {{Institute of Electrical and Electronics Engineers (IEEE)/Optical Society of America(OSA)}},
VOLUME = {36},
NUMBER = {9},
PAGES = {1601 - 1607},
YEAR = {2018},
MONTH = May,
DOI = {10.1109/JLT.2017.2784847},
KEYWORDS = {Chaos ; Optical chaos ; Parameter space exploration ; Sampling schemes ; Semiconductor laser ; VCSEL},
HAL_ID = {hal-01809670},
HAL_VERSION = {v1},
}
Endnote :
%0 Journal Article
%T Chaos in solarity VCSELs: exploring the parameter space with advanced sampling
%+ Brussels Photonics (Vrije Universiteit Brussel) (B-Phot)
%+ Lab-STICC_IMTA_MOM_DIM
%+ Département Micro-Ondes (MO)
%A Virte, Martin
%A Ferranti, Francesco
%< avec comité de lecture
%Z 18818
%@ 0733-8724
%J Journal of Lightwave Technology
%I Institute of Electrical and Electronics Engineers (IEEE)/Optical Society of America(OSA)
%V 36
%N 9
%P 1601 - 1607
%8 2018-05
%D 2018
%R 10.1109/JLT.2017.2784847
%K Chaos
%K Optical chaos
%K Parameter space exploration
%K Sampling schemes
%K Semiconductor laser
%K VCSEL
%Z Engineering Sciences [physics]/ElectronicsJournal articles
%X We explore the parameter space of the so-called spin-flip model by advanced sampling techniques to analyze the requirements leading to polarization chaos in solitary vertical-cavity surface-emitting lasers. We first investigate the performances of different sampling techniques for multidimensional parameter space exploration. Purely random sampling and tensor-product grids require a large amount of samples to uniformly cover the whole space, and we show that other schemes are highly superior to this regard, hence allowing a reduced number of samples and computation to be used to reach the same level of insight in the system behavior. Considering the scarcity of the chaotic regions and their sharp boundaries, combined with quite involved computations to identify chaotic dynamics, the proposed approach is shown to be highly beneficial. Here, we are able to highlight two thresholds limiting the range of injection current for which chaos can be observed, and to link them to a fine balance between the spin relaxation rate and the birefringence.
%G English
%L hal-01809670
%U https://hal.archives-ouvertes.fr/hal-01809670
%~ CNRS
%~ UNIV-UBS
%~ INSTITUT-TELECOM
%~ ENIB
%~ LAB-STICC
%~ UNIV-BREST
%~ IMTA_MO
%~ LAB-STICC_IMTA_MOM_DIM
%~ IMT-ATLANTIQUE
%~ LAB-STICC_IMTA
Communication dans un congrès
Jain Ankit, Pagani Pascal, Fleury Rolland, Ney Michel, Pajusco Patrice
Cross-channel souding for HF geolocation: concepts and experimental results
EuCAP2018: 12th European Conference on Antennas and Propagation, Apr 2018, Londres, United Kingdom. Proceedings EuCAP2018: 12th European Conference on Antennas and Propagation, 2018
Bibtext :
@inproceedings{jain:hal-01857311,
TITLE = {{Cross-channel souding for HF geolocation: concepts and experimental results}},
AUTHOR = {Jain, Ankit and Pagani, Pascal and Fleury, Rolland and Ney, Michel and Pajusco, Patrice},
URL = {https://hal.archives-ouvertes.fr/hal-01857311},
BOOKTITLE = {{EuCAP2018: 12th European Conference on Antennas and Propagation}},
ADDRESS = {Londres, United Kingdom},
HAL_LOCAL_REFERENCE = {19158},
PAGES = {.},
YEAR = {2018},
MONTH = Apr,
KEYWORDS = {HF propagation ; Ionosphere ; Geolocation ; Time difference of arrival ; Channel sounding},
HAL_ID = {hal-01857311},
HAL_VERSION = {v1},
}
Endnote :
%0 Conference Proceedings
%T Cross-channel souding for HF geolocation: concepts and experimental results
%+ Lab-STICC_IMTA_MOM_PIM
%+ Département Micro-Ondes (MO)
%A Jain, Ankit
%A Pagani, Pascal
%A Fleury, Rolland
%A Ney, Michel
%A Pajusco, Patrice
%< avec comité de lecture
%Z 19158
%( Proceedings EuCAP2018: 12th European Conference on Antennas and Propagation
%B EuCAP2018: 12th European Conference on Antennas and Propagation
%C Londres, United Kingdom
%P .
%8 2018-04-09
%D 2018
%K HF propagation
%K Ionosphere
%K Geolocation
%K Time difference of arrival
%K Channel sounding
%Z Engineering Sciences [physics]/ElectronicsConference papers
%X In the context of passive geolocation of High Frequency (HF) transmitters using the Time Difference of Arrival (TDoA) method, the transmitted signal and the propagation channel is unknown. This paper explains the principle of a method termed as "cross-channel sounding" along with its concepts. This method is used to evaluate the propagation duration differences of an unknown signal received by multiple synchronized distributed receivers. The mathematical description for cross-channel sounding is detailed, emphasizing the importance of the nature of the transmitted signal in the estimation of the propagation duration differences. An operational country wide TDoA receiver network capable of capturing HF signals is presented. HF broadcast signals are captured from different transmitters around Europe. Experimental data are used to analyze the different propagation modes from cross-channel sounding and assess the TDoA estimation complexity in the case of multipath channels.
%G English
%L hal-01857311
%U https://hal.archives-ouvertes.fr/hal-01857311
%~ CNRS
%~ UNIV-UBS
%~ INSTITUT-TELECOM
%~ ENIB
%~ LAB-STICC
%~ UNIV-BREST
%~ IMT-ATLANTIQUE
%~ LAB-STICC_IMTA_MOM_PIM
%~ IMTA_MO
%~ LAB-STICC_IMTA
Article dans une revue
Deshours Frédérique, Alquié Georges, Kokabi Hamid, Rachedi Kammel, Tlili M., Hardinata Satria, Koskas Fabien
Improved microwave biosensor for non-invasive dielectric characterization of biological tissues
Microelectronics Journal, Elsevier, 2018, 〈10.1016/j.mejo.2018.01.027〉
Bibtext :
@article{deshours:hal-01804833,
TITLE = {{Improved microwave biosensor for non-invasive dielectric characterization of biological tissues}},
AUTHOR = {Deshours, Fr{\'e}d{\'e}rique and Alqui{\'e}, Georges and Kokabi, Hamid and RACHEDI, Kammel and Tlili, M. and Hardinata, Satria and Koskas, Fabien},
URL = {https://hal.sorbonne-universite.fr/hal-01804833},
JOURNAL = {{Microelectronics Journal}},
PUBLISHER = {{Elsevier}},
YEAR = {2018},
MONTH = Feb,
DOI = {10.1016/j.mejo.2018.01.027},
HAL_ID = {hal-01804833},
HAL_VERSION = {v1},
}
Endnote :
%0 Journal Article
%T Improved microwave biosensor for non-invasive dielectric characterization of biological tissues
%+ Laboratoire d'Electronique et Electromagnétisme (L2E)
%+ Laboratoire ondes et acoustique (LOA)
%+ Département Micro-Ondes (MO)
%+ Service de Chirurgie Thoracique et Cardiovasculaire [CHU Pitié-Salpêtrière]
%A Deshours, Frédérique
%A Alquié, Georges
%A Kokabi, Hamid
%A RACHEDI, Kammel
%A Tlili, M.
%A Hardinata, Satria
%A Koskas, Fabien
%< avec comité de lecture
%@ 0026-2692
%J Microelectronics Journal
%I Elsevier
%8 2018-02-28
%D 2018
%R 10.1016/j.mejo.2018.01.027
%Z Engineering Sciences [physics]/ElectromagnetismJournal articles
%X Microwave planar sensors have a great interest in the medical environment due to their ability to measure the bulk dielectric parameters of biological tissues through non-invasive and contact-less sensing properties. Changes of these parameters, which are frequency dependent, can be representative of the pathological state of biological tissues. In this work, an improved prototype of planar sensor based on a microwave ring resonator operating at 1 GHz for the fundamental mode is presented. The objective is to obtain a better sensitivity for measuring high complex permittivity values of materials such as biological tissues, and to obtain higher precision in parameters determination. The performances of two sensors optimized on two different substrates were measured in a frequency range 1–10 GHz; an accurate equivalent electrical model is proposed to reproduce the frequency dependence of the resonators. Characterization of liquids and ex-vivo animal tissues is achieved to evaluate the effectiveness and the performances of the resonator sensor, and results are compared with electromagnetic simulations.
%G English
%L hal-01804833
%U https://hal.sorbonne-universite.fr/hal-01804833
%~ UPMC
%~ L2E
%~ CNRS
%~ UNIV-PARIS7
%~ ESPCI
%~ APHP
%~ PSL
%~ PARISTECH
%~ UPMC_POLE_1
%~ LANGEVIN
%~ USPC
%~ UPMC_POLE_2
%~ IMT-ATLANTIQUE
%~ IMTA_MO
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