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5 results on '"Andre Perennec"'

1. Ultra‐wideband antenna system for in‐band full‐duplex applications

Author

Hadi Hijazi, Marc Le Roy, Raafat Lababidi, Denis Le Jeune, and Andre Pérennec

Subjects
baluns, microstrip transitions, ultra wideband antennas, Vivaldi antennas, Telecommunication, TK5101-6720, Electricity and magnetism, QC501-766
Abstract

Abstract In this study, we present an ultra‐wideband full‐duplex system constituted of a wideband 4‐element Vivaldi array and wideband microstrip‐to‐slotline baluns. The proposed system is characterised by its simplicity, high directivity, and high self‐interference cancellation levels over a wide frequency bandwidth. The system is fabricated using basic printed‐circuit board (PCB) technology and can provide at least 50 dB of self‐interference cancellation over the bandwidth of operation, 4–40 GHz, with an average gain of 7.8 dBi. The system has a size of 8 cm × 8 cm × 9.4 cm and can be used as a high data rate link between two distant wireless nodes. To assess the merits of the proposed system and compare it to other published works, a new figure of merit (FoMWFD) dedicated to wide‐band full‐duplex antenna topologies is introduced in this study.

Published
2021
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4. Broadside FD Antenna Topologies for Nanosat Intersatellite Link

Author

Allan Pen, Marc Le Roy, Raafat Lababidi, Denis Le Jeune, Andre Perennec, Jean-Luc Issler, Kevin Elis, Adrien Gay, Jean-Herve Corre, Lab-STICC_UBO_MOM_DIM, Institut Brestois du Numérique et des Mathématiques (IBNM), Université de Brest (UBO)-Université de Brest (UBO)-Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (Lab-STICC), École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT), Lab-STICC_ENSTAB_MOM_DIM, Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (Lab-STICC), Institut Mines-Télécom [Paris] (IMT)-École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Centre National d'Études Spatiales [Toulouse] (CNES), Syrlinks (FRANCE), and Lab-STICC_ENSTAB_CACS_COM

Subjects
ACTI, [SPI.ELEC]Engineering Sciences [physics]/Electromagnetism, Side lobe, Linear polarization, Computer science, Proof of concept, Electronic engineering, Topology (electrical circuits), Antenna (radio), Center frequency, Network topology, Broadside, [SPI.TRON]Engineering Sciences [physics]/Electronics
Abstract

International audience; This paper presents and compares four different antenna topologies dedicated to Full-Duplex (FD) applications. The proposed architectures are able to operate simultaneously for transmitting TX and receiving RX radiating elements along broadside direction, contrarily to most of state of the art FD RF front-ends that also rely on destructive wave’s concept to get Self-Interference Cancellation (SIC). The four prototypes make use of three SIC stages and the common first level is obtained using orthogonal linear polarization between TX and RX. Step-by-step improvements are introduced from one to another topology in order to increase the SIC level and to reduce both side lobe levels and antenna size. Simulated and experimental results are provided, compared and discussed at the center frequency of 2.4 GHz as a proof of concept. The isolation obtained between TX and RX paths is higher than 80 dB in simulation and 60 dB in measurement. These results pave the way to an implementation of a high gain Full-Duplex Ka-band antenna for Nanosat Intersatellite Link

Published
2020

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