Millimeter wave wireless communications toward 300 GHz

Posted on: October 31, 2017

Speaker Professor Claudio Paoloni
Lancaster University
Date December 5, 2017
Time 3:00 PM
Location 2050 Academic Surge

Biographical Sketch

Claudio Paoloni, is the Head of Engineering Department and Cockcroft Chair at Engineering Department at Lancaster University. He is author of more than 180 articles in peer-reviewed international journals and conference proceedings and four patents.

He is Chair of the IEEE Electron Device Society Vacuum Electronics Technical Committee.

His main research fields are millimeter wave vacuum electron devices and high data rate wireless communications.

He is also the coordinator of the Horizon 2020 Project TWEETHER “Traveling wave tube based W-band wireless network with high data rate, distribution, spectrum and energy efficiency” (€3.6M) and the Horizon 2020 ULTRAWAVE “Ultra capacity wireless Layer beyond 100 GHz based on millimeter wave traveling wave tubes” (€2.99M).

Please join us for his seminar on Millimteer wave wireless communications toward 300 GHz.

Millimeter-Wave Technology Workshop

We are pleased to announce the Millimeter-Wave Technology Workshop and the Davis Millimeter- Wave Research Center (DMRC) Industry Day Meeting hosted at the University of California, Davis on Thursday, October 30th, 2014 at the Student Community Center. UC Davis Chancellor and DMRC member, Linda Katehi, will give the opening address and welcome. The workshop will feature prominent speakers from government and industry and the DMRC meeting will include state-of-the-art millimeter-wave laboratory tours and a student poster session showcasing current research. It is an excellent opportunity to stay up to date on state-of-the-art millimeter-wave technologies and to interact with students, faculty, and industry leaders.

The DMRC is broadly focused on fostering millimeter wave and THz technology for wireless communications, radar, sensing, and imaging systems. The activities in the DMRC range from devices, integrated circuits, components and packaging, sub-systems to system implementation. We are pleased to announce that Keysight Technologies, Inc, will be co-sponsoring this year’s workshop, along with the College of Engineering’s Corporate Relations office. We look forward to seeing you on October 30th, 2014.

Millimeter-Wave Technology Workshop
DMRC Industry Day Meeting Agenda                                                            Registration Form
October 30, 2014                                                                                        
Contact and Directions
Student Community Center, UC Davis                                                         
UC Davis Visitor Services 

8:00-8:45am Coffee, Posters, and Registration
8:45-9:00am Opening Remarks
Chancellor Katehi
9:00-9:30am DMRC Center Overview
Prof. Anh-Vu Pham [PDF]
9:30-10:15am DARPA MMW System programs and how they drive technology needs
Bruce Wallace, DARPA STO [PDF]
10:15-11:00am MMW / Sub-MMW Technologies and Applications
Jefferey Yang, Northrop Grumman Aerospace Systems [PDF]
11:00-11:15am Coffee Break and Posters
11:15-12:00pm Trends in mmWave devices, ICs and components for electronics test and measurement.
Daniel Thomasson, Keysight [PDF]
12:00-1:45pm Poster Fastforward, Posters, and Lunch [PDF]
1:45-2:30pm Highly scaled GaN device technology for E, W and G-band circuit applications
Alex Margomenos, HRL Laboratories
2:30-4:15pm Laboratory Tours and Posters
4:15-5:00pm Panel Discussion and Conclusion
5:00pm Reception


Upcoming Seminar: Functional Engineered Material Applications at Lancaster University

Posted on: April 22, 2014

Speaker Dr. Rosa Letizia
Lancaster University
Date Monday, April 28, 2014
Time 10:00am -11:45am
Location 2050 Academic Surge, UC Davis

Biographical Sketch

Rosa Letizia’s main research interests are focused on the area of Computational Modelling of artificial materials such as Photonic Band Gap (PBG) structures, linear and nonlinear, and Metamaterials for potential application into scaled-down particle accelerators and nano-photonics in general. She is also currently interested in the use of these composite materials for the exploitation of highly dispersive structures such as plasmonic waveguides in new frequency ranges of application. As a contribution to this field, Rosa Letizia has recently proposed a generalized MRTD scheme including a dispersion model of the complex refractive index of metals through various mathematical models such as Drude, Drude- Lorentz, and Drude-Critical Points model.

Upcoming Seminar: THz Vacuum Electron Devices at Lancaster University

Posted on: April 22, 2014

Speaker Professor Claudio Paoloni
Lancaster University
Date April 28, 2014
Time 9:45am – 10:45am
Location 2050 Academic Surge, UC Davis

Biographical Sketch

Claudio Paoloni received his Degree in Electronic Engineering from the University of Rome “Sapienza”, Rome, Italy, in 1984. From 1986-2012 he was a researcher in the Electronic Engineering Department of the University of Roma Tor Vergata, Rome, Italy. He won the STMicroelectronics GE 2005 award. Since 2008 he has been involved in the coordinating group of European Project OPTHER (Optically Driven THz Amplifier). He is the author of more than 140 articles in international journals and conference proceedings. He holds one patent (one pending). He has conducted research in different fields such as microstrip microwave circuits, beam-forming networks for active phased arrays, traveling wave amplifiers, ultrawideband matrix microwave amplifiers, and MMIC yield evaluation. His current interest includes analysis of slow wave structures for traveling wave tubes, design and simulation of vacuum electron devices, amplifiers and backward wave oscillators, for millimeter wavelengths and THz frequency band.

Upcoming Seminar: Low-Cost Phased Array and Reflectarray Antennas

Posted on: January 12, 2012

Speaker Dr. Xun Gong
Associate Professor, University of Central Florida
Date January 18, 2012
Time 10:00am -11:00am
Location 1127 Kemper Hall, UC Davis


Electronically scanned phased arrays are widely used in various civil and military applications including radar, broadcasting, cellular communications, satellite communications, and weather forecasting. However, the implementation of phased arrays has been limited to base stations, military applications, and high-end commercial products, regardless of their numerous technical advantages. The primary hindrance of the wide-scale deployment of phased arrays is the high cost associated with transmit/ receive (T/R) modules. Phase shifters are critical elements within these T/R modules that create phase shifts between antenna elements and steer the antenna beam to the desired direction. In many cases, the cost of phase shifters is up to nearly half of the cost of an entire electronically scanned phased array. This seminar is to present an innovative concept termed electronically steerable passive array radiator (ESPAR) to realize next-generation low-cost phased arrays, and related techniques for millimeter- wave applications.


Xun Gong received his B.S. and M.S. degrees in Electrical Engineering from FuDan University in 1997 and 2000, respectively, and the Ph.D. degree in Electrical Engineering from the University of Michigan, Ann Arbor in 2005. He is currently an associate professor in the Department of Electrical Engineering and Computer Science at University of Central Florida (UCF). He was with the Birck Nanotechnology Center at Purdue University, West Lafayette, IN, as a post-doctoral research associate. He served as the Chair of the IEEE Wireless and Microwave Technology Conference (WAMICON) 2012, and was appointed as the Operations Chair of 2014 IEEE MTT-S International Microwave Symposium (IMS) and the TPC Co-Chair for 2013 IEEE AP-S International Symposium. He served as the IEEE AP/MTT Chapter Chair in Orlando, FL during 2007- 2010. He has been the recipient of the NSF Faculty Early CAREER Award for 2009- 2014.

He has published 53 referred Journal articles and conference papers. His current research interests include microwave filters and passive components, wireless passive sensors for harsh environment applications, Antennas, phased arrays, and reflectarrays, flexible electronics, micromachining, advanced packaging, ceramic materials, polymer materials, ferroelectric materials, metamaterials, and material characterization.

Upcoming Seminar: Millimeter-Wave RF Front-ends and GaN MMIC Components

Posted on: October 18, 2011

Speaker Dr. Alexandros Margomenos
HRL Laboratories
Date October 20, 2011
Time 1:00pm – 2:00pm
Location 1065 Kemper Hall, UC Davis


During the lecture recent research and development efforts in mm-wave automotive radar RF front-ends and activities at HRL related to GaN MMIC and their use in future mm-wave systems will be presented. The talk will conclude with a presentation of HRL and an introduction to its research and development activities.


Dr. Alexandros Margomenos is a Research Staff Engineer at HRL Laboratories. He received his Ph.D. in Electrical Engineering from the University of Michigan at 2003 and his M.B.A. degree from the University of Michigan at 2009. At HRL, Dr. Margomenos is involved in the development of GaN MMIC components and GaN-based RF front-ends. Prior to joining HRL, he was a Senior Scientist at Toyota, where he was involved in developing a 77 GHz phased array automotive FMCW radar. Prior to that, he was a Senior Scientist at EMAG Technologies, where he was responsible for developing 3D integrated wafer-scale phased array RF front-ends, mm-wave Si micromachined components and RF MEMS circuits. He has been PI and co-PI on multiple government and industry funded programs.

Department of Electrical and Computer Engineering :: University of California Davis :: One Shields Avenue :: Davis, CA 95616

Upcoming Seminar: Effects of Surface Roughness on Electrical Contact, RF Heating and Field Enhancement

Posted on: September 30, 2011

Speaker Professor Y. Y. Lau
Department of Nuclear Engineering and Radiological Sciences
University of Michigan, Ann Arbor
Date October 17, 2011
Time 1:00pm
Location 1065 Kemper Hall


Surfaces are never perfectly flat. Because of the surface roughness on a microscopic scale, true contact between two pieces of conductors occurs only at the asperities (small protrusions) of the two contacting surfaces, leading to contact resistance, an important issue to high power microwave sources, wire-array Z pinches, metal-insulator-vacuum junctions, field emitters, thin film devices and integrated circuits, and interconnects, etc. Surface roughness may also cause enhanced RF absorption on the surface, an important consideration for MW gyrotron and for the development of THz source. Another profound effect of surface roughness is the excessive local electric field enhancement that triggers RF breakdown. In a superconducting cavity, surface roughness is known to cause local magnetic field enhancement that leads to abrupt quenching, i.e., rapid loss of superconductivity.

This talk features recent advances made at the University of Michigan on the modeling of various effects of surface roughness, including electrical contact resistance for both bulk contacts and thin film contacts. Scaling laws are constructed for a large range of resistivity ratios and geometries in the contact members. Also presented is roughness-induced enhanced RF heating, and the enhanced RF electric and magnetic fields.


Y. Y. Lau received the S.B., S.M., and Ph.D. degrees in electrical engineering from the Massachusetts Institute of Technology (MIT). He lauwas Assistant Professor in applied mathematics at MIT, and a research physicist at the US Naval Research Laboratory, before joining the University of Michigan, Ann Arbor as a Professor with the Department of Nuclear Engineering and Radiological Sciences. He has worked on electron beams, coherent radiation sources, plasmas, and discharges. He is the author of 190 refereed publications and ten patents. He is Fellow of the American Physical Society and of IEEE. He received the 1999 IEEE Plasma Science and Applications Award, and served as an Associate Editor for the Physics of Plasmas.

Agilent Technologies and UC Davis Announce New Millimeter and Sub-Millimeter Wave Research Center

Posted on: August 2, 2011

From the Agilent Technologies Newsroom:

Agilent Technologies Inc. (NYSE: A) and the University of California, Davis, today announced they will establish the Davis Millimeter Wave Research Center. The DMRC will focus on advancing technology in millimeter wave and THz systems for radar, imaging systems, sensors, communications and integrated passive devices found in electromagnetic metamaterials and antennae.

The DMRC is vertically integrated, with research involving devices, integrated circuits, packaging, metamaterials and defected ground integrated passives, imaging systems, THz vacuum electronics, THz micro-machined devices, nonlinear modeling, nanomaterials and wireless implantable devices.

These devices and systems are found in commercial products such as medical imaging systems, security scanners, gigabit wireless communications devices and sensors, as well as defense usages such as radar and active denial systems.

The first aim of the new center is to establish a core test facility with measurement capabilities that include Agilent nonlinear vector network and spectrum analysis test equipment up to 325 GHz. These facilities will support gigabit wireless communications at 60 GHz and 80 GHz, as well as the imaging, radar and active denial systems to 325 GHz.

“In launching the DMRC, our goal is to become a premier millimeter-wave research center nationally and internationally,” said Linda P.B. Katehi, chancellor of UC Davis. “With this new facility, UC Davis will be able to expand the research, and recruit outstanding graduate students and faculty.”

“Agilent is delighted to support UC Davis’ research into millimeter wave technology,” said Gregg Peters, vice president of Agilent’s Component Test Division. “Millimeter wave implementation has broad industry impact, and our many first-to-market test solutions are ideal tools for revealing the information critical to their work.”

About the Davis Millimeter Wave Research Center

The Davis Millimeter Wave Research Center is an industry-university cooperative research program. The DMRC is broadly focused on fostering millimeter wave technology for wireless communications, radar, sensing, and imaging systems. The activities in the DMRC involve devices, integrated circuits, components, packaging, subsystems and system implementation.

About UC Davis

For more than 100 years, UC Davis has engaged in teaching, research and public service that matter to California and transform the world. Located close to the state capital, UC Davis has more than 32,000 students, more than 2,500 faculty and more than 21,000 staff, an annual research budget that exceeds $678 million, a comprehensive health system and 13 specialized research centers. The university offers interdisciplinary graduate study and more than 100 undergraduate majors in four colleges – Agricultural and Environmental Sciences, Biological Sciences, Engineering, and Letters and Science. It also houses six professional schools – Education, Law, Management, Medicine, Veterinary Medicine and the Betty Irene Moore School of Nursing.

About Agilent Technologies

Agilent Technologies Inc. (NYSE: A) is the world’s premier measurement company and a technology leader in chemical analysis, life sciences, electronics and communications. The company’s 18,500 employees serve customers in more than 100 countries. Agilent had net revenues of $5.4 billion in fiscal 2010. Information about Agilent is available at


Janet Smith, Agilent, Americas
+1 970 679 5397

Sarah Calnan, Agilent, Europe
+44 (118) 927 5101

Iris Ng, Agilent, Asia
+852 31977979