Université de Bretagne Occidentale (UBO)

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• Publications

Articles dans des revues

• Hadi Hijazi, Marc Le Roy, Raafat Lababidi, Denis Le Jeune, André Pérennec. Ultra‐wideband antenna system for in‐band full‐duplex applications. IET Microwaves Antennas and Propagation, 2021, pp.1-13. ⟨10.1049/mia2.12194⟩. ⟨hal-03428256⟩. <pdf>
• Saadou Al Mokdad, Raafat Lababidi, Marc Le Roy, Sawsan Sadek, André Pérennec, et al.. Methodology for Broadband Matching of Electrically Small Antenna using combined Non-Foster and Passive Networks. Analog Integrated Circuits and Signal Processing, 2020, 104, pp.251-263. ⟨10.1007/s10470-020-01672-3⟩. ⟨hal-02781014v2⟩. <pdf>
• Raafat Lababidi, Maryam Al Shami, Marc Le Roy, Denis Le Jeune, Khaled Khoder, et al.. Tunable Channelized Bandstop Passive Filter Using Reconfigurable Phase Shifter. IET Microwaves Antennas and Propagation, 2019, 13 (5), pp.591-596. ⟨10.1049/iet-map.2018.5430⟩. ⟨hal-01876724⟩. <pdf>
• Zahra Katbay, Sawsan Sadek, Marc Le Roy, André Pérennec, Raafat Lababidi. From narrow-band to ultra-wide-band microwave sensors in direct skin contact for breast cancer detection. Analog Integrated Circuits and Signal Processing, 2018, 96 (2), pp.221-234. ⟨10.1007/s10470-018-1114-8⟩. ⟨hal-01821707⟩
• Petros Bantavis, Christos I Kolitsidas, Tzihat Empliouk, Marc Le Roy, B. Lars G. Jonsson, et al.. A Cost-Effective Wideband Switched Beam Antenna System for a Small Cell Base Station. IEEE Transactions on Antennas and Propagation, 2018, 66 (12), pp.1-4. ⟨10.1109/SaPIW.2018.8401663⟩. ⟨hal-02087695⟩. <pdf>
• Khaled Khoder, André Pérennec, Marc Le Roy. A 180° tunable analog phase shifter based on a single all-pass unit cell. Microwave and Optical Technology Letters, 2013, 55 (12), pp.2915-2918. ⟨10.1002/mop.27955⟩. ⟨hal-00867023⟩. <pdf>
• Blaise Elysée Guy Ravelo, André Pérennec, Marc Le Roy. Synthesis of Frequency-Independent Phase Shifters Using Negative Group Delay Active Circuit. International Journal of RF and Microwave Computer-Aided Engineering, 2011, 21 (1), pp.17-24. ⟨10.1002/mmce.20482⟩. ⟨hal-00547403⟩. <pdf>
• Blaise Elysée Guy Ravelo, Marc Le Roy, André Pérennec. Application of negative group delay active circuits to the design of broadband and constant phase shifters. Microwave and Optical Technology Letters, 2008, 50 (12), pp.3079-3081. ⟨10.1002/mop.23883⟩. ⟨hal-00468012⟩. <pdf>
• Blaise Elysée Guy Ravelo, André Pérennec, Marc Le Roy. Negative group delay active topologies respectively dedicated to microwave frequencies and baseband signals. Proceedings of the European Microwave Association, 2008, 4 (2), pp.124-130. ⟨hal-00468107⟩. <pdf>
• Blaise Elysée Guy Ravelo, André Pérennec, Marc Le Roy, Yann G. Boucher. Active Microwave Circuit With Negative Group Delay. IEEE Microwave and Wireless Components Letters, 2007, 17, pp.861-863. ⟨10.1109/LMWC.2007.910489⟩. ⟨hal-00461783⟩. <pdf>
• Marc Le Roy, André Pérennec. Spurious Responses Suppression of Parallel Coupled-Lines Microstrip Bandpass Filters: Comparison and Improvements of Planar Approaches. International Journal of Microwave Computer-Aided Engineering, 2007, 17 (1), pp.104-109. ⟨10.1002/mmce.20204⟩. ⟨hal-00468122⟩. <pdf>
• M. Le Roy, Eric Lheurette, O. Vanbésien, D. Lippens. Wave-mechanical calculations of leakage current through stacked dielectrics for nanotransistor Metal-Oxide-Semiconductor design. Journal of Applied Physics, 2003, 93, pp.2966-2971. ⟨hal-00146086⟩. <pdf>
• Marc Le Roy, André Pérennec, Serge Toutain, Léon-Claude Calvez. Continuously varying coupled transmission lines applied to design band-pass filters. International Journal of RF and Microwave Computer-Aided Engineering, 2002, 12 (3), pp.288-295. ⟨10.1002/mmce.20204⟩. ⟨hal-00809278⟩. <pdf>

Communications dans un congrès

• Hadi Hijazi, Marc Le Roy, Raafat Lababidi, Denis Le Jeune, André Pérennec. Réseau d'antennes Vivaldi en impression 3D métallisée Ultra-Large-Bande pour applications In-Band Full-duplex. 22èmes Journées Nationales Microondes, Jun 2022, Limoges, France. ⟨hal-04148978⟩. <pdf>
• Hadi Hijazi, Marc Le Roy, Raafat Lababidi, Denis Le Jeune, André Pérennec. Réseau d’antennes In-Band Full-Duplex Ultra-Large-Bande à double polarisation. 22èmes Journées Nationales Microondes (JNM 2022), Jun 2022, Limoges, France. pp.323-326. ⟨hal-03716380⟩. <pdf>
• Hadi Hijazi, Allan Pen, Marc Le Roy, Raafat Lababidi, Denis Le Jeune, et al.. Circularly Polarized In-Band Full-Duplex Antenna Array for Ka-Band Inter-CubeSat Links. 2022 20th IEEE Interregional NEWCAS Conference (NEWCAS), Jun 2022, Quebec, Canada. pp.80-83, ⟨10.1109/NEWCAS52662.2022.9842252⟩. ⟨hal-03760403⟩. <pdf>
• Phi-Long Doan, Marc Le Roy, André Pérennec, Gérard Tanné, Olga Ishchenko, et al.. Déphaseur RTPS numérique 2 bits en bande X à activation optique ultra-rapide à partir de commutateurs à base de VO2. 22èmes Journées Nationales Microondes, Jun 2022, Limoges, France. pp.1032-1035. ⟨hal-03716390⟩. <pdf>
• Hadi Hijazi, Marc Le Roy, Raafat Lababidi, Denis Le Jeune, André Pérennec. Wideband Dual-Polarized Full-Duplex Antenna Array. International Conference on Advanced Technologies for Communications (ATC'21), Oct 2021, Ho Chi Minh city, Vietnam. pp.1-6. ⟨hal-03428804⟩. <pdf>
• Hadi Hijazi, Marc Le Roy, Raafat Lababidi, Denis Le Jeune, André Pérennec. 4-40 GHz In-Phase/180° Out-of-Phase Power Dividers with Enhanced Isolation. 14th European Conference on Antennas and Propagation – EuCAP 2020, European Association on Antennas and Propagation (EurAAP), Mar 2020, Copenhagen, Denmark. pp.1-4. ⟨hal-02497561⟩. <pdf>
• Allan Pen, Marc Le Roy, Raafat Lababidi, Denis Le Jeune, André Pérennec, et al.. Broadside FD Antenna Topologies for Nanosat Intersatellite Link. NEWCAS 2020 (18th IEEE International NEWCAS Conference), Jun 2020, Montréal, Canada. pp.1-4. ⟨hal-02780479⟩. <pdf>
• Mohammad-Nikhian N Sadiq, Marc Le Roy, André Pérennec, Marie-Blandine Martin, Paul Laurent, et al.. Caractérisations RF et optique de commutateurs hyperfréquences ultra-rapides à base de VO2. 16 èmes Journées de Caractérisation Microondes et Matériaux 2020, Toulouse, France, Mar 2020, Toulouse, France. pp.1-4. ⟨hal-02497173⟩. <pdf>
• Saadou Al Mokdad, Raafat Lababidi, Marc Le Roy, Sawsan Sadek, André Pérennec, et al.. Inverseur actif accordable large-bande à base de composants Non-Foster améliorés. 21èmes Journées Nationales Microondes, May 2019, Caen, France. pp.1-2. ⟨hal-02135810⟩. <pdf>
• Marcos Lajovic Carneiro, Marc Le Roy, André Pérennec, Raafat Lababidi, Philippe Ferrari, et al.. Compact Analog All-Pass Phase-Shifter in 65-nm CMOS for 24/28 GHz on-Chip-and in-Package Phased-Array Antenna. 23rd IEEE Workshop on Signal and Power Integrity, Jun 2019, Chambery, France. ⟨hal-02136008⟩. <pdf>
• Hadi Hijazi, Marc Le Roy, Raafat Lababidi, Denis Le Jeune, André Pérennec. Diviseur de Puissance Compact Ultra-Large-Bande 3-40 GHz. 21èmes Journées Nationales Microondes, May 2019, Caen, France. pp.1-2. ⟨hal-02135669⟩. <pdf>
• Mohammad-Nikhian N Sadiq, Marc Le Roy, André Pérennec, Paul Laurent, Noham Martin, et al.. Conception et caractérisation de commutateurs à base de VO2 pour des dispositifs reconfigurables. 21èmes Journées Nationales Microondes, May 2019, Caen, France. pp.1-2. ⟨hal-02135583⟩. <pdf>
• Mohammad Nikhian Sadiq, Marc Le Roy, André Pérennec, Paul Laurent, Noham Martin, et al.. Design and Characterisation of VO 2 Based Switches for Ultra-Fast Reconfigurable Devices. International Microwave Workshop Series on Advanced Materials and Processes (IMWS-AMP 2019), Jul 2019, Bochum, Germany. ⟨hal-02135908⟩. <pdf>
• Allan Pen, Marc Le Roy, Raafat Lababidi, Denis Le Jeune, André Pérennec, et al.. Etude comparative des différentes techniques d’annulation de l’auto-interférence au niveau RF/antennaire pour application Full-Duplex. 21èmes Journées Nationales Microondes, May 2019, Caen, France. pp.1-2. ⟨hal-02135644⟩. <pdf>
• Mohammad Nikhian Sadiq, Marc Le Roy, André Pérennec, Noham Martin, Paul Laurent, et al.. Déphaseurs numériques à base de VO2 pour réseaux phasés. 21èmes Journées Nationales Microondes, May 2019, Caen, France. pp.1-2. ⟨hal-02135559⟩. <pdf>
• Petros Bantavis, Marc Le Roy, André Pérennec, Raafat Lababidi, Denis Le Jeune. Miniaturized Wide- and Dual-Band Multilayer Electromagnetic Bandgap For Antenna Isolation and on-Package/PCB Noise Suppression. 2018 IEEE 22nd Workshop on Signal and Power Integrity (SPI)., May 2018, Brest, France. pp.1-4, ⟨10.1109/SaPIW.2018.8401663⟩. ⟨hal-01821763⟩. <pdf>
• Saadou Ali Al Mokdad, Raafat Lababidi, Marc Le Roy, Sawsan Sadek, André Pérennec, et al.. Wide-band Active Tunable Phase Shifter Using Improved Non-Foster circuit. 2018 25th IEEE International Conference on Electronics, Circuits and Systems (ICECS), Dec 2018, Bordeaux, France. pp.449-452, ⟨10.1109/ICECS.2018.8618011⟩. ⟨hal-02052738⟩
• Zahra Katbay, Marc Le Roy, Charif Olleik, André Pérennec, Sawsan Sadek, et al.. Bi-Static Time Domain Study for Microwave Breast Imaging. 2018 18th Mediterranean Microwave Symposium (MMS), Oct 2018, istanbul, Turkey. pp.411-414, ⟨10.1109/MMS.2018.8612055⟩. ⟨hal-02136036⟩
• Marc Le Roy, Petros Bantavis, André Pérennec, Raafat Lababidi, Denis Le Jeune. Multilayer Miniaturized Wideband Electromagnetic Band-Gaps For Wideband Full-Duplex Transceiver. 48th European Microwave Conference, EuMC 2018, Sep 2018, Madrid, Spain. pp.1-4. ⟨hal-01885651⟩. <pdf>
• Fabien Arzur, Marc Le Roy, André Pérennec, Gérard Tanné, Nicolas Bordais. Ligne à retard large-bande, compacte et réglable de 6,67 ns à 1,67 µs pour simulateur de cibles pour radar automobile 77 GHz. 20 èmes Journées Nationales Microondes, 16-19 Mai 2017, Saint-Malo, May 2017, Saint-Malo, France. pp.1-4. ⟨hal-01506969⟩. <pdf>
• Fabien Arzur, Marc Le Roy, André Pérennec, Gérard Tanné, Nicolas Bordais. Hybrid Architecture of a Compact, Low-cost and Gain Compensated Delay Line Switchable From 1 m to 250 m for Automotive Radar Target Simulator. EuRAD (European Radar Conference) 2017, EuMW, Nuremberg, Germany, Oct 2017, Nuremberg, Germany. pp.1-4. ⟨hal-01589846⟩. <pdf>
• Zahra Katbay, Saadou Ali Al Mokdad, Sawsan Sadek, Marc Le Roy, Mohamad-Raafat Lababidi, et al.. A UWB Antenna in direct breast contact for cancer detection. IEEE SENSET 2017 (International Conference on Sensors, Networks, Smart and Emerging Technologies), Beirut, Lebanon, Sep 2017, Beirut, Lebanon. pp.1-4. ⟨hal-01589873⟩. <pdf>
• Marcos Lajovic Carneiro, Marc Le Roy, André Pérennec, Mohamad-Raafat Lababidi, Philippe Ferrari, et al.. Déphaseur compact passe-tout large-bande basé sur des lignes couplées à ondes lentes en CMOS 65nm à 28GHz. 20èmes Journées Nationales Microondes, May 2017, Saint-Malo, France. pp.1-2. ⟨hal-01507263⟩. <pdf>
• Zahra Katbay, Sawsan Sadek, Marc Le Roy, Mohamad-Raafat Lababidi, André Pérennec, et al.. Antenne compacte pour la détection de tumeurs cancéreuses du sein. 20èmes Journées Nationales Microondes, mai 2017 - Saint-Malo, May 2017, Saint-Malo, France. ⟨hal-01507268⟩
• Fabien Arzur, Marc Le Roy, André Pérennec, Gérard Tanné, Nicolas Bordais. Small-Size and Low-Cost Wideband 800 MHz Delay Line Tunable from 1.3 ns to 1.67 µs for Automotive Radar Sensor. IEEE MTT-S 2017 International Conference on Microwaves for Intelligent Mobility : ICMIM2017 , Mar 2017, Nagoya, Japon. pp.1-4. ⟨hal-01507282⟩. <pdf>
• Zahra Katbay, Saadou Ali Al Mokdad, Marc Le Roy, Mohamad-Raafat Lababidi, Sawsan Sadek, et al.. Antenne Ultra-Large-Bande en contact direct avec le sein pour la détection de tumeurs cancéreuses. 20èmes Journées Nationales Microondes, mai 2017 - Saint-Malo, May 2017, Saint-Malo, France. ⟨hal-01507279⟩
• Zahra Katbay, Sawsan Sadek, Marc Le Roy, Mohamad-Raafat Lababidi, André Pérennec, et al.. Microstrip Back-Cavity Hilbert Fractal Antenna for Experimental Detection of Breast Tumors. IEEE Middle East Conference on Antennas and Propagation (MECAP), Sep 2016, Beirut, Lebanon. ⟨hal-01414983⟩. <pdf>
• Khaled Khoder, Marc Le Roy, Mohamad-Raafat Lababidi, André Pérennec. Déphaseur 360 ° compact large-bande. 19 èmes Journées Nationales Microondes, Juin 2015 - Bordeaux, Jun 2015, Bordeaux, France. pp.1-2. ⟨hal-01149727⟩. <pdf>
• Khaled Khoder, Marc Le Roy, Mohamad-Raafat Lababidi, André Pérennec. Déphaseur 360° compact large-bande. JNM 2015, INP Bordeaux, Jun 2015, Bordeaux, France. ⟨hal-01164505⟩
• Zahra Katbay, Sawsan Sadek, Mohamad-Raafat Lababidi, Andre Perennec, Marc Le Roy. Miniature Antenna for Breast Tumor Detection. NEWCAS 2015, Université de Grenoble, Jun 2015, Grenoble, France. ⟨hal-01164494⟩

Chapitres d'ouvrage

• Blaise Elysée Guy Ravelo, André Pérennec, Marc Le Roy. A New Technique of Interconnect Effects Equalization by using Negative Group Delay Active Circuits. Zhongfeng Wang. VLSI, In-Tech (www.intechweb.org), pp.409-434, 2010, 978-953-307-049-0. ⟨hal-00492503⟩
• Blaise Elysée Guy Ravelo, André Pérennec, Marc Le Roy. Study and Application of Microwave Active Circuits with Negative Group Delay. Igor Minin. Microwave and Millimeter Wave Technologies : Modern UWB antennas and equipment, In-Tech (www.intechweb.org), pp.415-440, 2010, 978-953-7619-67-1. ⟨hal-00492519⟩

Thèse

• Marc Le Roy. Analyse et optimisation de lignes de transmission à variation continue d'impédance : application au filtrage. Sciences de l'ingénieur [physics]. Université de Bretagne occidentale - Brest, 1999. Français. ⟨NNT : ⟩. ⟨tel-00468594⟩. <pdf>

HDR

• Marc Le Roy. Circuits et déphaseurs hyperfréquences : topologies innovantes, conceptions et exemples d’applications. Physique [physics]. Ecole Doctorale MATHSTIC, 2022. ⟨tel-04149025⟩. <pdf>