G. Christopher Barisich,
Doctorate Student

Background

Mr. Barisich received his B.S. degree in Electrical Engineering from Louisiana State University in 2006, and was employed by C&C Technologies from 2007 to 2011. As a field engineer and later a technical manager, he was part of a multidisciplinary team which used an autonomous underwater vehicle to create high-resolution 3D maps of the ocean floor. In the fall of 2011, Mr. Barisich began his graduate studies in Electrical Engineering at the Georgia Institute of Technology, where he spent a year performing centimeter and millimeter wave measurements of simulated Venusian atmospheres before joining the Microwave Circuit Technology group. As a PhD student, his research is currently focused on high-power organic flexible microwave circuits.

Research Interests

• Microwave Component and Subsystem Design
• RF IC Design and Packaging
• Extreme Environment Electronics
• Wireless Sensor Networks

Experience

• Graduate Research Assistant (2011 – Present), Georgia Institute of Technology
• Offshore Technical Manager (2009 – 2011), C&C Technologies, Inc.
• Field Engineer (2007 – 2009), C&C Technologies, Inc.
• Engineering Intern (2005 – 2006, Summers), Entergy Nuclear

Contact Information

Mailing address:
Technology Square Research Building
85 Fifth Street NW, Suite 547
Atlanta, GA 30308
Phone: (404) 385-6408
Email: c.barisich@gatech.edu

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Dr. Cagri Ulusoy,
Research Engineer

Background

Cagri Ulusoy received the B.Sc. degree in Electronics Engineering from Istanbul Technical University, Turkey, in 2005, and the M.Sc. degree in Electronics Engineering from Ulm University, Germany, in 2008. He received his doctorate degree with the highest honors (summa cum laude) also from Ulm University in 2012.

In Fall 2012, he joined the Georgia Institute of Technology as a research engineer. His main research area is RF-IC design for ultra-wideband and millimeter wave communication and radar systems.

Awards

• Best Student Paper Award, 1st Place IEEE Radio Wireless Symposium, Jan. 2011, Phoenix, AZ
• Student Paper Competition, 2nd Place IEEE MTT-S International Microwave Symposium, Jun. 2011, Baltimore, MD
• Best Paper Award, IEEE Mediterranean Microwave Symposium, Aug. 2010, Güzelyurt, Cyprus

Research Interests

• MMIC design for ultra-wideband and millimeter wave radar and communication systems

Experience

• 2012~Present: Research Engineer, Georgia Electronic Design Center, Georgia Institute of Technology, Atlanta, GA
• 2008~2012: Full-time research associate, Institute of Electron Devices and Circuits, Ulm University, Germany

Publications

Journal Articles

1. Ulusoy, A. C.; Kaynak, M.; Purtova, T.; Tillack, B.; Schumacher, H. “A 24 to 79 GHz frequency band reconfigurable LNA for automotive radar applications”, IET Electronics Letters -accepted
2. Ulusoy, A. C.; Schumacher, H. “Multi-Gbps analog synchronous QPSK demodulator with phase noise suppression”, IEEE Transactions on Microwave Theory and Techniques, vol. 60, issue 11, pp. 3591-3598, 2012.
3. Ulusoy, A. C.; Kaynak, M.; Purtova, T.; Tillack, B.; Schumacher, H. “A 60 to 77 GHz switchable LNA in an RF-MEMS embedded BiCMOS technology”, IEEE Microwave and Wireless Components Letters, vol.22, issue 8, pp. 430-432, 2012
4. Ulusoy, A. C.; Schleicher, B.; Schumacher, H. “A tunable differential allpass filter for UWB phase and delay shift applications”, IEEE Microwave and Wireless Components Letters. vol. 21, issue 9, pp. 462 – 464, 2011
5. Ulusoy, A. C.; Liu, G.; Trasser, A.; Schumacher, H. “Hardware efficient receiver for low-cost ultra-high rate 60 GHz wireless communications”, International Journal of Microwave and Wireless Technologies. Cambridge University Press, vol. 3, issue 2, pp. 121-129, 2011

Conference Articles

1. Ulusoy, A. C.; Krone, S.; Liu G.; Almeroth, B.; Guderian, F.; Barghouti A.; Hellfeld, M.; Carta C.; Ellinger, F.; Fetweiss, G.; Schumacher, H. “A 60 GHz Multi-Gb/s system demonstration utilizing analog synhronization and 1-bit data conversion” IEEE Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems, Jan. 2013, Austin, TX
2. Ulusoy, A. C.; Schumacher, H. “A system-on-package analog synchronous QPSK demodulator for ultra-high rate 60 GHz wireless communications”, IEEE MTT-S International Microwave Symposium. Jun. 2011, Baltimore, MA (Best paper award, 2nd place)
3. Ulusoy, A. C.; Liu, G.; Trasser, A.; Schumacher, H. “Analog synchronous QPSK demodulator for ultra-high rate wireless communications”, German Microwave Conference. Mar. 2011, Darmstadt, Germany
4. Ulusoy, A. C.; Liu, G.; Trasser, A.; Chartier, S; Schumacher, H. “Analog synchronous receiver for multi-gigabit wireless communications”, IEEE MTT-S Radio Wireless Symposium. Jan. 2011, Phoenix, AZ (Best paper award, 1st place)
5. Ulusoy, A. C.; Liu, G.; Peter, M.; Felbecker, R.; Abdine, H.; Schumacher, H. “A BPSK/QPSK receiver architecture suitable for low-cost ultra-high rate 60 GHz wireless communications”, European Microwave Conference. Sep. 2010, Paris, France
6. Ulusoy, A. C.; Liu, G.; Feger, T.; Trasser, A.; Schumacher, H. “A narrow bandwidth microstrip bandpass lter suitable for system-on-package integration”, IEEE Mediterranean Microwave Symposium. Aug. 2010, Guzelyurt, Cyprus (Best paper award, 2nd place)
7. Ulusoy, A. C.; Liu, G.; Trasser, A.; Schumacher, H. “A SiGe frequency quadrupler for M-QAM carrier recovery”, IEEE Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems. Jan. 2010, New Orleans, LA

Articles as a Co-author

1. Schleicher, B.; Ulusoy, A. C.; Schumacher, H. “A biphase modulator circuit for impulse radio-UWB applications”, IEEE Microwave and Wireless Components Letters. vol.20, issue 2, pp. 115-117, 2010
2. Kahn, W.; Ulusoy, A. C.; Papapolymerou, J. “D-Band Characterization of Co-Planar Wave Guide and Microstrip Transmission Lines on Liquid Crystal Polymer“, IEEE Electronic Components and Technology Conference, May 2013, Las Vegas, NV – accepted
3. Valenta, V.; Ulusoy, A. C.; Trasser, A.; Schumacher, H. “Wideband 110 GHz frequency quadrupler for an FMCW imager in 0.13 µm SiGe:C BiCMOS process” IEEE Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems, Jan. 2013, Austin, TX
4. Liu, G.; Ulusoy, A. C.; Trasser, A.; Schumacher, H. “A low-cost, wide-band 60 GHz down-converter module for multi-gigabit per second wireless communication” IEEE Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems, Jan. 2013, Austin, TX
5. Su. Y; Ulusoy, A. C.; Liu, G.; Trasser, A.; Schumacher, H. “W-band Microstrip Bandpass Filters for Image Rejection”, 8th Conference on PhD Research in Microelectronics and Electronics, Jun. 2012, Aachen, Germany
6. Liu, G; Ulusoy, A. C.; Trasser, A.; Schumacher, H. “A 60 GHz down-conversion mixer with 6.6 dB gain and 11 GHz IF bandwidth in an 80 GHz SiGe HBT technology” German Microwave Conference, Mar. 2011, Darmstadt
7. Liu, G; Ulusoy, A. C.; Trasser, A.; Schumacher, H. “64 to 86 GHz VCO utilizing push-push frequency doubling in a 80 GHz fT SiGe HBT technology” IEEE Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems. Jan. 2010, New Orleans, USA
8. Liu, G; Ulusoy, A. C.; Trasser, A.; Schumacher, H. “60 – 80 GHz frequency doubler operating close to fmax”, Asia-Pasic Microwave Conference, Dec. 2010, Yokohoma, Japan
9. Liu, G; Ulusoy, A. C.; Trasser, A.; Schumacher, H. “A 60 GHz frequency down-converter with divided LO output in an 80 GHz SiGe HBT technology” Asia-Pasific Microwave Conference, Dec. 2010, Yokohoma, Japan
10. Liu, G; Trasser, A.; Ulusoy, A. C.; Schumacher, H. “Low-loss, low-cost, IC-to-board bondwire interconnects for millimeter-wave applications”, IEEE MTT-S International Microwave Symposium. Jun. 2011, Baltimore, USA
11. Liu, G; Kaynak, M.; Purtova, T.; Ulusoy, A. C.; Tillack, B.; Schumacher, H. “Dual-band millimeter-wave VCO with embedded RF-MEMS switch module in BiCMOS technology” IEEE Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems. Jan. 2012, Santa Clara, USA
12. Leib, M.; Mach, T.; Schleicher, B.; Ulusoy, A. C.; Menzel, W.; Schumacher, H. “Demonstration of UWB communication for implants using an energy detector”. German Microwave Conference, Mar. 2010, Berlin
13. M. Kaynak, M. Wietstruck, W. Zhang, J. Drews, R. Barth, D. Knoll, F. Korndoerfer, R. Scholz, K. Schulz, C. Wipf, B. Tillack, K. Kaletta, K. Zoschke, M. Wilke, O. Ehrmann, Ulusoy, A. C.; T. Purtova,, G. Liu, H. Schumacher, and M. Suchodoletz “Packaged BiCMOS Embedded RF-MEMS Switches with Integrated Inductive Loads”. IEEE MTT-S International Microwave Symposium, Jun. 2012, Montreal, Canada
14. M. Kaynak, M. Wietstruck, W. Zhang, J. Drews, R. Scholz, D. Knoll, F. Korndorfer, C. Wipf, K. Schulz, M. Elkhouly, K. Kaletta, M. v. Suchodoletz, K. Zoschke, M. Wilke, O. Ehrmann, V. Mühlhaus, G. Liu, T. Purtova, Ulusoy, A. C.; H. Schumacher, and B. Tillack “RF-MEMS Switch Module in a 0.25 µm BiCMOS Technology” IEEE Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems, Jan. 2012, Santa Clara, CA.

Presentations

1. “Reconfigurable millimeter wave ICs in an embedded RF-MEMS technology” MEMSWAVE Jun. 2012, Antalya, Turkey
2. “Millimeter wave receiver frontend for 10 Gb/s wireless communications and beyond” Silicon millimeter wave circuits and systems workshop, May 2012, Erlangen, Germany
3. “Reconfigurable millimeter wave ICs in an embedded RF-MEMS technology” Gigahertz Symposium, Mar. 2012, Stockholm, Sweden
4. “Reconfigurable millimeter wave ICs in an embedded RF-MEMS technology” IHP Workshop, Sep. 2011, Frankfurt(Oder), Germany
5. “60 GHz Kurzstreckenübertragung mit Gbit/s Übertragungsraten als Option für den Klinischen Alltag” Medizintechnik Aktuell, Oct. 2012, Ulm, Germany

Contact Information

Georgia Institute of Technology
Georgia Electronic Design Center
85 5th st. NW, suite 519
Atlanta GA 30308
aculusoy@gatech.edu
(404)3856411

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Press release excerpt:

Ms. Vera Lopez’s paper entitled, “Hybrid Silicon-Organic Packaged Antenna Array at 60 and 80 GHz Using a Low-Cost Bonding Technique,” was coauthored with her Ph.D. advisor John Papapolymerou, G. Ponchak of the NASA Glenn Research Center, and A. Akiba, S. Mitarai, and K. Ikeda of Sony Corporation.  Her work presents a hybrid silicon-organic packaged mm-wave antennas that is flip-chip bonded to a 400 µm thick silicon substrate through gold bumps and a non-conductive film (NCF) adhesive layer.

See the official press release.

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Press release excerpt:

John Papapolymerou has been appointed editor-in-chief of IEEE Microwave and Wireless Components Letters. A professor in the School of Electrical and Computer Engineering, Dr. Papapolymerou is the first Georgia Tech faculty member to hold this post and will begin his three-year term in the position this fall.

IEEE Microwave and Wireless Components Letters is…

See the official press release.

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Gaetan Dufour,
M.Sc. Alumnus

Background

Gaëtan Dufour pursue an advanced undergraduate preparation in maths & physics for the competitive national entrance examinations to the French Grandes Ecoles. In 2009 He was accepted at the Ecole Centrale de Lille: one of France’s top ten Grandes Ecoles leading to an Engineering degree (equivalent to the Master Degree). After a two-years common core multidisciplinary curriculum he specialized in Waves, Micro/Nano-technologies and Telecoms. He also pursued a Master Research Degree in Micro/Nano Technologies at the University of Lille. He intends to graduate from those to Universities in 2012 after a final 6 months internship in the MircTech Group.

Research Focus

• Tunable antennas on ultra-soft substrates
• Microfluidic for RF systems

Work Experience

• Summer 2011: Intern Engineer Assistant at RTE (French network for transport of electricity) in the Network Development Department
• Summer 2010: Research Intern at the University of Texas at Austin in the Environmental and Water Resources Engineering (EWRE)

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Press release excerpt:

(The) paper entitled “A Lightweight Organic X-Band Active Receiving Phased Array with Integrated SiGe Amplifiers and Phase Shifters,” (…) was published in volume 59, number 1, pp. 100-109 of the transactions. Sponsored by NASA, the work described in this paper focuses on the development of a lightweight, low cost, conformal, and compact X-band phased array for ice/snow measurements that are critical for weather forecasting and environmental analysis. This technology can also be used for weather radars and in a variety of wireless communication and sensor systems at other frequencies, such as high speed wireless with Gbps transmission rates.

Dr. Papapolymerou’s coauthors on the paper were his Ph.D. student Chad Patterson, who is co-advised by College of Engineering Dean Gary May; Ana Yepes, an M.S. graduate of Dr. Papapolymerou’s group who is now working at Intel; Swapan Bhattacharya, a former postdoctoral fellow in Dr. Papapolymerou’s group who is now a senior research scientist in the School of Physics at Georgia Tech; John Cressler, the Ken Byers Professor in ECE; Tushar Thrivikraman, a Ph.D. graduate of John Cressler’s group who is now working at NASA-JPL; and Sean Begley, a research engineer in GTRI.

See the official press release.

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A master’s degree student in John Papapolymerou’s research group, Mr. Chlieh works with CMOS Ultra-Wide-Band Active Baluns, an RF device that can convert a differential signal at the input to a single ended signal at the output. The advantage of active baluns compared to passive ones is that they provide some positive gain in order to compensate for any eventual loss, and CMOS offers the possibility of shrinking the size of a chip so that it can be used in a variety of applications.

See the official press release.

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Press release excerpt:

Mr. Donado Morcillo was honored for his paper entitled “Design of Stripline Beam-Former Network Components for Low-Profile, Organic Phased Arrays in the X-Band.” Sharing in this award were his co-authors and co-presenters, ECE Ph.D. student Chad Patterson and Chad’s and Carlos’ Ph.D. advisor, ECE Professor John Papapolymerou.

See the official press release.

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Outmane Lemtiri Chlieh,
Doctorate Student

Background

• 2011-2012 : Georgia Institute of Technology : Master of science, School of Electrical and Computer Engineering. (Metz – Atlanta)
• 2008-2011 : INP ENSEEIHT : Three-year degree course leading to a French Engineering Diploma equivalent to a Master’s Degree in Engineering.Department of Electronics and Signal Processing, major in Integrated Circuits. (Toulouse)
• 2006-2008 : Two-year intensive undergraduate course in “PreparatoryClasses”: a competitive French system intended to prepare the entrance exams to several French Engineering Schools. (Marrakesh)

Awards

• Recipient of the IEEE MTT-S Fall 2011 BS-MS Scholarship Award for the 0.18um CMOS UWB Balun work.

Research Focus

• Broadband planar baluns
• Cooling and tuning techniques for GaN devices on organic substrates
• High-frequency characterization of active devices through load-pull measurements

Work Experience

• 2010-2011 : Atelier Interuniversitaire de Micro-nano-Electronique (AIME).(One week) One-week intensive internship: Manufacturing of NMOS Integrated Circuits.
• 2009-2010 : Fraunhofer IIS, IC department.(3 months) Fraunhofer IIS is a German research institute in microelectronics.Tasks accomplished during the internship:
  • Development of graphical user interfaces to facilitate the configuration of I²C slaves.
  • Setup of specifications, C++/Delphi coding, testing.

Contact Information

Mailing address:
Technology Square Research Building
85 Fifth Street NW, Suite 547
Atlanta, GA 30308
Phone No.: (404) 385-6408
Email: olemtiri@gatech.edu

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Press release excerpt:

John Papapolymerou, professor in the School of Electrical and Computer Engineering, was awarded the IEEE Fellow citation “for contributions to flexible, microwave and wireless components and systems.”

Papapolymerou has been instrumental in the development of conformal, flexible and lightweight radio frequency hardware for wireless communication systems and radars…

See the official press release here

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