ΑΣΥΡΜΑΤΑ ΤΗΛΕΠΙΚΟΙΝΩΝΙΑΚΑ! ΣΥΣΤΗΜΑΤΑ ΝΕΑΣ ΓΕΝΙΑΣ

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1 ΙΔΡΥΜΑ (Τ.Ε.Ι.) ΑΘΗΝΩΝ Σχολή Τεχνολογικών Εφαρµογών Τµήµα Ηλεκτρονικών Μηχανικών ΕΡΓΑΣΤΗΡΙΟ ΜΙΚΡΟΚΥΜΑΤΩΝ Ερευνητική Οµάδα Ασύρµατων Επικοινωνιών και Ηλεκτρονικών Εφαρµογών ΑΣΥΡΜΑΤΑ ΤΗΛΕΠΙΚΟΙΝΩΝΙΑΚΑ ΣΥΣΤΗΜΑΤΑ ΝΕΑΣ ΓΕΝΙΑΣ Κ.Ν. Βουδούρης Καθηγητής Αθήνα, 11 Ιουνίου 2014 Η Έρευνα στο ΤΕΙ Αθήνας

2 WICEAR research group was founded in 2008 by Prof. Dr. K.N. Voudouris. It participates in various research projects funded by the EC and national resources, having scientific and administrative role accumulating this way a quite extensive experience in performing and managing Research Projects. 2

3 Wireless Communications Systems & Networks Antennas Microwave Subsystem design millimeter Wave Substrate Integrated Waveguides WMAN/WLAN radio planning Web Applications RoF Antenna interface RFIDs 3

4 ΤΕΧΝΟΛΟΓΙΚΟ Εξοπλισμός εργαστηρίου: Α. Υλισμικό Vector Signal Generator (100KHz - 6 GHz) Signal Analyzer (20Hz - 8,4 GHz) Signal Generator (up to 10GHz) BTS Master (up to 7 GHz) Spectrum Analyzer & VNA Master (up to 6 GHz) Πεδιόμετρο (88MHz - 2.5GHz) Πεδιόμετρο (100KHz - 5GHz) Spectrum Analyzer (έως 3GHz) Πεδιόμετρο κατάλληλο για Δορυφορικές Επικ. Β. Λογισμικό ADS - Eesof (Λογισμικό σχεδίασης Μικροκυματικών κυκλωμάτων) Cellular Expert (Λογισμικό Ραδιοκάλυψης) ANSOF MATLAB OPNET 4 Εργαστήριο Μικροκυµάτων ΤΕΙ Αθήνας

5 Ερευνητικά προγράματα: RElay based WIreless Network and standard (REWIND) FP7 ICT project no: Partners: TEI Athens (GR), Ubiqam (ISR), OTE (GR), AT4 wireless (ES), CODIUM (ES), DesignArt (ISR) Coordinator: Dr. K.N. Voudouris, Asc. Prof. of Telecommunications Budget: 5, Budget for TEI of Athens: 850,000 Next Generation Millimeter Wave Backhaul Radio (NexGen-MiliWave) Project no: ΜΙΚΡΟ2-ΣΕ-Β/Ε-ΙΙ Partners: Analogies, Fasmetrics, Prisma, Sciensis, Theta Microelectronics, NTUA, ΑUTH, WiCEAR-Group TEI of Athens, U.Patras, OTE SA Coordinator: Theta Microelectronics Budget: 4,000,000 Budget for TEI of Athens: 185,000 Συνολικός προϋπολογισμός για το ΤΕΙ-Α: 1,035,000 5 Εργαστήριο Μικροκυμάτων ΤΕΙ Αθήνας

6 Mobile and Satellite Communications Research Center(MSCRC) of Department of Engineering Design and Technology of University of Bradford (UoB), UK Research Department of the Hellenic Telecommunications Organization (OTE), Greece Associate Membership at the Hellenic Semiconductors Industry (HSIA) Member of Corallia Nano/Microelectronics based Systems and Applications Cluster (mi-cluster) Member of the WiMAX forum Member of the Radio and Spectrum Matters (RAS) cluster of the EU Alternate Member of COST Action IC0902 Cognitive Radio and Networking for Cooperative Coexistence of Heterogeneous Wireless Networks 6

7 RElay based WIreless Network and standard (REWIND) FP7 ICT project no: Budget: Total cost is euros ( euros EC contribution). WiCeAR's Budget is euros and acts as coordinator. Duration: 01/01/ /01/2011 Main achievements Partners: TEI Athens (GR), Ubiqam (ISR), OTE (GR), AT4 wireless (ES), CODIUM (ES), DesignArt (ISR) Coordinator: Dr. K.N. Voudouris, Asc. Prof. of Telecommunications Description: REWIND project has created low-cost, easy to install Relay Stations providing the necessary capacity and coverage to support new wireless applications with similar QoS currently available only through wired broadband service (e.g. DSL). MRBS system RS enclosure RS system 2x2 switch matrix (>90dB) 7

8 The main scientific and technological objectives of the REWIND project were in the area of design, development and integration of advanced wireless relay stations based on OFDM technology. In order to reach this main objective, the objectives described below have been realised: 1. A WiMAX relay based beta network has been implemented by: Defining the network operators user scenarios, requirements and business aspects; Creating the relay network architecture including networks components, interfaces and specifications; Developing algorithms and technologies for embedding within the WiMAX relay prototype for optimized performance; Developing a WiMAX relay station prototype that meets the requirements specified by the network operator; Interoperability testing of the relay station with standard compliant base-stations and mobile stations with a custom test suite for base-station<>relay-station<>mobile station scenarios; Lab and field testing of the prototype beta system under multiple user scenarios to demonstrate the coverage, capacity and network optimization enhancements. 8

9 2. Participation in IEEE802.16j and WiMAX Forum relay standardization processes. The following contributions were submitted to IEEE j Multi-hop Relay Specification: Improve the specification by restricting the transmission of MR HARQ Error Report header by RS to MR-BS or super-ordinate RS as an unsolicited feedback in UL relay zone and for intermediate RS forwards the MR HARQ Error report header toward the MR-BS only in case of centralized scheduling Improve the specification by mandating that in multi-hop relay systems with RSs operating in distributed scheduling mode, upon receiving a DSA-REQ from its superordinate station to request for admission control decision, an RS should reply with a DSA-RSP to MR-BS. Improve the specification by improving the performance of DSA and DSC transaction in multi-hop relay systems with RSs operating in distributed scheduling mode. The performance is improved by specifying that the MR-BS shall send a DSA-ACK to all the RSs on the path together with only the modified service flow parameters. Correct ARQ mechanism and state machine in hop-by-hop mode: 9

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11 Femto-relay indoor deployment Near-LOS backhaul for street-level urban Pico-cell Femto-relay visualization Femtocells 11

12 REWIND Single-Unit Relay Station top level architecture 12

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14 ΤΕΧΝΟΛΟΓΙΚΟ A modified E-shaped patch array is designed based on a composite substrate, comprising: a high permittivity substrate Rogers RO3006 (εr= 6.15, thickness h=0.128cm) and a low permittivity foam layer (εr=1, h=0.5cm) 14 Planar 4 4 modified E-shaped patch array Cross section of the planar 4 4 modified E-shaped patch array

15 Top view of 1:8 Wilkinson power divider Wilkinson power divider with component description 15

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18 ΤΕΧΝΟΛΟΓΙΚΟ 18

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20 ΤΕΧΝΟΛΟΓΙΚΟ REWIND prototype system 20

21 ΤΕΧΝΟΛΟΓΙΚΟ MRBS Prototype 21

22 Next Generation Millimeter Wave Backhaul Radio (NexGen-MiliWave) Project no: ΜΙΚΡΟ2-ΣΕ-Β/Ε-ΙΙ Total Budget: Euros Main achievements Budget for WiCEAR: Euros Duration: from 1/6/09 to 31/10/2013 Partners: Analogies, Fasmetrics, Prisma, Sciensis, Theta Microelectronics, NTUA, ΑUTH, WiCEAR-Group TEI of Athens, U.Patras, OTE SA Coordinator: Theta Microelectronics Description: NexGenMiliWave was a research project in the framework of Corallia. Its main objective was to develop and demonstrate the operation of an experimental radio modem based on microwave nanoelectronic structures in millimeter-wave frequencies at 60 GHz, which are used in highly secure communications and satellite communications. SIW diplexer 5 th and 7 th order Chebyshev 8x8 SIW slot antenna aray 22

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25 Ενδεικτική Αρχιτεκτονική Συστήµατος για διασύνδεση δικτύων 25

26 Λειτουργικό Διάγραμμα Συστήματος 26

27 60 GHz SIW Diplexer Design 27 T-junction diplexer, equal amplitude and phase. 50 Ohm SIW-microstrip transition.

28 ΤΕΧΝΟΛΟΓΙΚΟ Substrate Integrated Waveguide Technology SIW General Structure SIW Bandpass 5th order 28 SIW Bandpass 7th order SIW Diplexer

29 60 GHz SIW RF front End Simulation Results Input Return Loss varies below -10 db in pass bands. 29

30 Σχεδίαση χιλιοστομετρικών κεραιών σε επίπεδη τεχνολογία και σε τεχνολογία 3D μεταλλικών κυματοδηγών 8x8 SIW Slot Antenna Array 30

31 ΤΕΧΝΟΛΟΓΙΚΟ Μελέτη χαρακτηριστικών ζεύξης & παρεμβολών σε πραγματικό σενάριο Προσομοίωση ζεύξεων με χρήση Cellular Expert 31

32 Ερευνητικά Αποτελέσµατα: Δύο (2) Διδακτορικές Διατριβές. Τριάντα εξι (36) δημοσιεύσεις σε διεθνή περιοδικά και συνέδρια. Πλήθος διπλωματικών, πτυχιακών εργασιών και πρακτικών ασκήσεων. Τεχνογνωσία στον συντονισμό Ευρωπαϊκών ερευνητικών αποτελεσμάτων. 32

33 Ερευνητικά Αποτελέσµατα (Συνέχεια 1): Οι παρακάτω διδακτορικές διατριβές εκπονήθηκαν σε συνεργασια με τα Πανεπιστήμια Bradford και Brunel του Ηνωμένου Βασιλείου. [1] "Advanced load balancing routing algorithms for the next generation wireless networks", by P. Tsiakas, Degree awarded July 2010, in collaboration with Brunel University, West London, UK (supervisors: Dr. M. Chadzinicolaou and Dr. K. Voudouris) [2] Development of an antenna system, for a Relay-Based wireless network, by I. Petropoulos, Degree awarded July 2013, in collaboration with the University of Bradford, UK, (supervisors: Prof. R.A.Abd Alhameed, Dr. S. Jones and Dr. K. Voudouris) 33

34 Ερευνητικά Αποτελέσµατα (Συνέχεια 2) ΠΡΟΣΦΑΤΟ ΔΗΜΟΣΙΕΥΜΕΝΟ ΕΡΓΟ (τελευταία πενταετία): A. International Journal papers (with review) N. ATHANASOPOULOS, D. MAKRIS, and K. VOUDOURIS, A 60 GHz Planar Diplexer Based on Substrate Integrated Waveguide Technology, Active and Passive Electronic Components, Hindawi, vol. 2013, Article ID , 6 pages, S. MIKROULIS, I. PETROPOULOS, K. VOUDOURIS, "Efficient smart integrated antennas for applications in indoor 60 GHz wireless over fiber systems", Microelectronic Engineering, Elsevier B.V., April 2013, ISSN , /j.mee I. PETROPOULOS, N. ATHANASOPOULOS, K. VOUDOURIS, R.A.A. ALHAMEED and S.M R JONES, Phased Array Antenna Receives 4G Networks, Microwaves and RF, PENTON Publisher, NewYork, issue November K. VOUDOURIS, N. ATHANASOPOULOS, P TSIAKAS, I. GEORGAS, G. AGAPIOU, A. RIGAS, D. MANOR, "Performance Verification of a Prototype WiMAX Relay Station", IET Special Issue on Energy Efficient and Reconfigurable Transceivers, Institution of Engineering and Technology (IET), pp ,

35 Ερευνητικά Αποτελέσµατα (Συνέχεια 3) ΠΡΟΣΦΑΤΟ ΔΗΜΟΣΙΕΥΜΕΝΟ ΕΡΓΟ (τελευταία πενταετία): I. PETROPOULOS, K. VOUDOURIS, R.A. ABD-ALHAMEED, S.M.R. JONES, and N. ATHANASOPOULOS, A Novel Design of Microstrip Arrays for Relay-Based Wireless Network, International Journal of Antennas and Propagation, Hindawi, Volume 2011 (2011), Article ID , 10 pages, K. VOUDOURIS, N. ATHANASOPOULOS, P. TSIAKAS, A. MEIR, G. AGAPIOU, Prototype Relay Station for WiMAX wireless networks, MICROWAVES & RF, Jan.11, PENTON Publisher, NewYork, p.p K. VOUDOURIS, N. ATHANASOPOULOS, A. MEIR, D. MANOR, P. TSIAKAS, I. GEORGAS, I. PETROPOULOS, and G. AGAPIOU, 2x2 Switch Matrix for WiMAX Relay Station Applications, IEEE Microwave and wireless components letters (MWCL), 2011, p.p G. AGAPIOU, K. VOUDOURIS, G. HELIOTIS, I. CHOCHLIOUROS, Reconfigurable Optical and Wireless Mesh Networks, The Journal of the Telecommunications Professionals, vol.3 part 4, Dec. 2009, p.p A.S. SPILIOPOULOU, I.P. CHOCHLIOUROS, K.N. VOUDOURIS, G. AGAPIOU AND G. HELIOTIS, Mobile TV in the European Market Sector: Opportunities and Limitations, The Journal of the Telecommunications Professionals,. vol.3 part 2, Jun. 2009, p.p

36 Ερευνητικά Αποτελέσµατα (Συνέχεια 4) ΠΡΟΣΦΑΤΟ ΔΗΜΟΣΙΕΥΜΕΝΟ ΕΡΓΟ (τελευταία πενταετία): B. Book Chapters (with review) K. VOUDOURIS, P. TSIAKAS, N. ATHANASOPOULOS, I. GEORGAS, N. ZOTOS AND CH. STERGIOPOULOS, (2012). "A WiMAX Network Architecture Based on Multi-Hop Relays", Quality of Service and Resource Allocation in WiMAX, Roberto C. Hincapie and Javier E. Sierra (Ed.), ISBN: , InTech M. PATINIOTAKIS, ST. PERDIKOURIS, G. AGAPIOU1, K. VOUDOURIS, E. DIMITRIADOU1, I. FREMIS3, A. IOANNOU1, Mesh Wi-Fi Networks: Architectures and Experimental Results chapter V in Wireless Technologies for Ambient Living and Health care: Systems and Applications, IGI Global publication, (pp ). Hershey, A. RIGAS, M. PATINIOTAKIS, G. AGAPIOU, K. VOUDOURIS, E. DIMITRIADOU, Performance of WiMAX Networks, chapter VI in Wireless Technologies for Ambient Living and Health care: Systems and Applications, IGI Global publication, (pp ). Hershey, J. CHOCHLIOUROS, A. SPILIOPOULOU, S. CHOCHLIOUROS and K. VOUDOURIS, European E- Signatures Solutions on the Basis of PKI Authentication Technology, chapter XVIII in Socioeconomic and Legal Implications of Electronic Intrusion, IGI Global publication,, edited by Dr.Politis, Dr.Kozyris, and Dr.Iglezakis, 2009, pp

37 Ερευνητικά Αποτελέσµατα (Συνέχεια 5) ΠΡΟΣΦΑΤΟ ΔΗΜΟΣΙΕΥΜΕΝΟ ΕΡΓΟ (τελευταία πενταετία): K.N. VOUDOURIS, et.al. Developing an Innovative Multi-hop Relay Station Software Architecture in the Scope of the REWIND European Research Programme, SPRINGER Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 1, Volume 13, Mobile Lightweight Wireless Systems, Pages I. CHOCHLIOUROS, A. MOR, K. VOUDOURIS, O. AMRANI and G. AGAPIOU, A Mobile Multi-hop Relay Base Station (MRBS) Relay Station (RS) Link Level Performance of Coding/Modulation Schemes, on the Basis of the REWIND Research Program, SPRINGER Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 1, Volume 13, Mobile Lightweight Wireless Systems, Pages , doi / _10, C. International Conference papers with review: I. PETROPOULOS, K. VOUDOURIS, R.A.A. ALHAMEED, S.M.R. JONES, Phased Array Antenna Suitable for a Relay-aided WiMAX Network, 2013 Loughborough Antennas & Propagation Conference, November 2013, Loughborough, UK I. PETROPOULOS, S. MIKROULIS, A. BOGRIS, H. SIMOS, K. VOUDOURIS, Novel 60 GHz CPW array antennas with beam-forming features for indoor wireless over fiber networks, Proc. SPIE 8645, Broadband Access Communication Technologies VII, Feb.,

38 Ερευνητικά Αποτελέσµατα (Συνέχεια 6) ΠΡΟΣΦΑΤΟ ΔΗΜΟΣΙΕΥΜΕΝΟ ΕΡΓΟ (τελευταία πενταετία): S. MIKROULIS, I. ALDAYA, I. PETROPOULOS, E. GIACOUMIDIS, K. VOUDOURIS, I. TOMKOS, Investigation on a low-cost single wavelength converged wired-60 GHz wireless OFDM-based system employing a photonic patch antenna. Proc. SPIE 8645, Broadband Access Communication Technologies VII, Feb N. ATHANASOPOULOS, D. MAKRIS, K. VOUDOURIS, ''Design and Development of 60 GHz Millimeter-wave Passive Components using Substrate Integrated Waveguide Technology'', in 2nd PACET (PAnhellenic Conference on Electronics and Telecommunications), Thessaloniki, Greece, March N. ATHANASOPOULOS, D. MAKRIS, K. VOUDOURIS, ''Millimeter-wave Passive Front-End based on Substrate Integrated Waveguide Technology'', in 2012 Loughborough Antennas & Propagation Conference, pp.1-5, Loughborough, United Kingdom, November MAKRI, R.A, TSENES, P.A, ECONOMOU, D.A, PAPANANOS, Y.A, DERVENIS, D.B, BIRBAS,M.C, KIKIDIS, J.C, PALIOURAS, V.D, KALIVAS, G.D, BIRBAS, A.D, KARAIVAZOGLOU, P.E, STRATAKOS, Y.F, KORINTHIOS, J.F, SISKOS, S.G, XATZOPOULOS, A.G, KOMNINOS, J.H, KATSIKAS,S.H, VOUDOURIS, K., RIGAS, A.J, AGAPIOU, G.J, RAXIS, P., Next generation millimeter wave backhaul radio: Overall system design for GbE 60GHz PtP wireless radio of high CMOS integration, th IEEE International Conference on Electronics, Circuits, and Systems, pp , ICECS

39 Ερευνητικά Αποτελέσµατα (Συνέχεια 7) ΠΡΟΣΦΑΤΟ ΔΗΜΟΣΙΕΥΜΕΝΟ ΕΡΓΟ (τελευταία πενταετία): N. ATHANASOPOULOS, J. PETROPOULOS, K VOUDOURIS, A Phased Array Unit for Adaptive Backhauling in WiMAX Relay Networks, International Conference on Electromagnetics in Advanced Applications (ICEAA), September 12 17, 2011, pp.94-97, Torino, Italy N. ATHANASOPOULOS, J. PETROPOULOS, K VOUDOURIS, 2x2 Switch Matrix for a prototype WiMAX Relay Station, International Conference on Electromagnetics in Advanced Applications (ICEAA), September 12 17, 2011, pp.90-93, Torino, Italy 39 N. ATHANASOPOULOS, D. MAKRIS, and K. VOUDOURIS, "5th Order Millimeter-wave Substrate Integrated Waveguide Band Pass Filters, International Conference on Electromagnetics in Advanced Applications - IEEE Antennas and Propagation in Wireless Communications Conference, pp Torino, Italy N. ATHANASOPOULOS, D. MAKRIS, and K. VOUDOURIS, "Development of a 60 GHz Substrate Integrated Waveguide Planar Diplexer", IEEE MTT-S International Microwave Workshop Series on Millimeter Wave Integration Technologies, pp , Sept Barcelona Spain G. AGAPIOU, A. RIGAS, S. AGAPIOU, K. VOUDOURIS and S. MIKROULIS, Backhauling and access means through a 60 GHz developed prototype 50th FITCE International Congress, 31/8-3/

40 Ερευνητικά Αποτελέσµατα (Συνέχεια 8) ΠΡΟΣΦΑΤΟ ΔΗΜΟΣΙΕΥΜΕΝΟ ΕΡΓΟ (τελευταία πενταετία): N. ATHANASOPOULOS, P. TSIAKAS, K. VOUDOURIS, I. GEORGAS, AND G. AGAPIOU, Multi-hop Relay in Next Generation Wireless Broadband Access Networks An Overview, 2nd International ICST Conference on Mobile Lightweight Wireless Systems, May 2010, Barcelona, Spain I. GEORGAS, I. PETROPOULOS, N. VOUDOURIS, P. TSIAKAS, N. ATHANASOPOULOS, M. COHEN, B. CYZS AND G. AGAPIOU, Relay vs. Repeater Architectures in WiMAX, 6th International ICST conference on mobile multimedia communications- MOBEMEDIA, Lisbon-Portugal, 6-8 Sept N. ATHANASOPOULOS. P. TSIAKAS. K. VOUDOURIS, D. MANOR, A. MOR, G. AGAPIOU, An IEEE802.16j prototype Relay Station Architecture, IEEE MELECON 2010 Conference Valletta-Malta, April P. TSIAKAS, A. DOR, K. VOUDOURIS, M. HADJINICOLAOU: "Load Balancing in Limited Intra-Cell Interference (LICI) Networks Based on Maximum Graph-Flow Algorithms", 2009 IEEE International Conference on Ultra Modern Telecommunications, IEEE ICUMT 2009, pp.1-5, St-Petersburg, Russia, October 12-14, J. CHOCHLIOUROS, A. MOR, K. VOUDOURIS et.al., A Multi-Hop Relay Station Software Architecture Design on the Basis of the WiMAX IEEE j Standard, IEEE Vehicular Technology Conference (VTC), Barcelona, April

41 Ερευνητικά Αποτελέσµατα (Συνέχεια 9) ΠΡΟΣΦΑΤΟ ΔΗΜΟΣΙΕΥΜΕΝΟ ΕΡΓΟ (τελευταία πενταετία): K. VOUDOURIS, et.al., Developing an Innovative Multi-Hop Relay Station Software Architecture in the Scope of the REWIND European Research Programme, 1st International Conference on Mobile Lightweight Wireless Systems, Athens, Greece, May 18-20, PETROPOULOS, K. VOUDOURIS, P. TSIAKAS, I. GEORGAS, K. VERGOS AND G. AGAPIOU, "A Business Model Analysis for WiMAX Relay Station Networks", Future Network & Mobile Summit 2010 Conference, Florence- Italy, June J. CHOCHLIOUROS, K. VOUDOURIS, et.al., Multihop Relay Stations: An MRBS-RS Link-Level Performance, ICT Mobile Summit, Santander, Spain June, N. ATHANASOPOULOS, D. MAKRIS, K. VOUDOURIS, Design and Development of 60 GHz Millimeter-wave Passive Components using Substrate Integrated Waveguide Technology, PAnhellenic Conference on Electronics and Telecommunications (PACET) March 2012, Thessaloniki, Greece G. AGAPIOU, K VOUDOURIS, Measurements on WiFi Mesh architectures, 1st Hellenic Conference of Electronics and Telecommunications PACET, Patras,

42 ΤΕΧΝΟΛΟΓΙΚΟ Current Staff Permanent Staff Prof. Dr. K.N. Voudouris (Head of Group) Dr. Panagiotis Tsiakas Lecturer of Algorithmic design and software development Research Associates Mr. Kiriakos Orfanakos, B.Eng., M.Sc 42 Professor of Wireless Telecommunications Electronics Applications

43 Technological Educational Institution (T.E.I.) of Athens Previous Staff Postdoctoral Researh Fellows Dr. Nikolaos Athanasopoulos DIpl.Ing. PhD ( ) Current position: Director, Communications Network, of the Greek Rail Dr. Spiridon Mikroulis, BSc, MSc, PhD ( ) Now works as Postdoc fellow at the University College London in the UK Dr. Ioannis Petropoulos (BSc, MSc, PhD) ( ) Now works as Postdoc Fellow at the XLIM, Université de Limoges en France Research Assistants Mr. Iraklis Georgas B.Eng. M.Sc. ( ) Now works as an RF engineer at Mr. Dimitrios Makris B.Eng. M.Sc. ( ) Now he is a researcher at TEI of Athens (Archmidis III) Mr. Nikolaos Mavrakis, B.Eng., MSc ( ) Now works as Telecoms Engineer at the Civil Aviation Authority in Greece Mr Zafiris Pantelis, Dipl. Ing. ( ) Now works as Radio Network Planning Engineer at Huawei Technologies, Switzerland Mr. Panagiotis Spanos B.Eng., MSc ( ) Now works as R&D Engineer at IknowHow S.A., Greece Mr. Panagiotis Sotiropoulos B.Eng. ( ) He is RF engineer at ANTI-Sat. 43

44 ΤΕΧΝΟΛΟΓΙΚΟ Η Ελλάδα στον παγκόσμιο χάρτη Μικροηλεκτρονικής - Corallia Ο καθηγητής Βουδούρης, Επιστημονικά Υπεύθυνος του έργου, εξηγεί στους Γενικούς Γραμματείς Έρευνας κ. Βασιλάκο, και Δημοσίων Επενδύσεων (ΕΣΠΑ) κ. Γιαννούση καθώς και στον Πρόεδρο του Εθνικού Συμβουλίου Έρευνας και Τεχνολογίας Καθηγητή Σηφάκη, για τα επιτεύγματα του Εργαστηρίου Μικροκυμάτων του ΤΕΙ Αθηνών, και τον ρόλο του στο ερευνητικό έργο NexGenMiliwave. 44

45 Ευχαριστώ Κ.Ν. Βουδούρης Καθηγητής 45 Εργαστήριο Μικροκυμάτων ΤΕΙ Αθήνας