Resonant’s Legacy of Technical Thought Leadership

Resonant has a team of more than 45 technology experts, including 16 Ph.D.s, on its staff to work on breakthrough technology for next-generation RF filters. Some of the published authors include:

Gregory C. Dyer, Ph.D., Principal Member of the Technical Staff

Dr. Gregory C. Dyer holds a BA degree in physics and Russian from Grinnell College and a Ph.D. in condensed matter physics from The University California Santa Barbara.  He has over a decade of R&D experience at national laboratories and in industry, spanning the electromagnetic spectrum from VHF to the infrared, at both the component and system levels.  His current research interests include RF acoustic filters and sensors, low dimensional electronic structures, applied electromagnetics, and THz and mmWave detectors and devices.  He has authored 14 peer reviewed manuscripts and multiple patents in the domain of RF, mmWave, and THz device physics.

Resonant Publications

5 GHz Band n79 wideband microacoustic filter using thin lithium niobate membrane
Electronics Letters (Aug. 22, 2019)

 

Mike Eddy, Ph.D., Vice President of Corporate Development

Dr. Mike Eddy has 30 years of experience in the wireless industry. Previously, he was President and Founder of ANTONE Wireless, a leader in the 4G network infrastructure enhancement products that was acquired by Westell Technologies, Inc. Before that, Dr. Eddy held several senior management positions at Superconductor Technologies Inc. Dr. Eddy earned his Ph.D. in Solid State Chemistry from Oxford University and his MBA from Pepperdine University.

Resonant Publications

How Wi-Fi Continues to Evolve to be The Solution to Wireless Data Demand
White paper
Maximizing Spectral Efficiency to Overcome A Spectrum Deficit in a 5G World
White paper

 

Neal Fenzi, Chief Technology Officer and Co-Founder

Neal Fenzi was with Superconductor Technologies Inc. (STI) for more than 21 years serving as VP of Engineering and VP of Product Management, as well as many other roles including leading cryo-genic cooler operations and development. He led a team at STI that developed a Resonant’s technology. His foundation in microwave engineering began at Hughes Aircraft Co., designing and building complex microwave filter banks and multiplexers for communication satellites. He was with Amplica Inc., where he designed high-performance low-noise amplifiers and lead teams developing complex integrated subassemblies for the military microwave market. He was with the Bureau of Safety and Environmental Enforcement, New Mexico State University, Las Cruces, NM, USA. He holds 15 issued U.S. patents. 

Resonant Publications

Hierarchical Cascading Algorithm for 2D FEM Simulation of Finite SAW Devices
IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control PP(99):1-1 (July 2018)

 

Robert B. Hammond, Ph.D., CTO Emeritus

Dr. Hammond received his BS, MS, and Ph.D. degrees in physics and applied physics from Caltech.  From 1976-1987, he was with the Los Alamos National Laboratory, where he led Electronics Research and Exploratory Development, and established a semiconductor physics and device development group.  In 1987, he co-founded Superconductor Technologies Inc., where he was Chief Technical Officer through 2012.  At STI he built a team of engineers and scientists, lead technology development, and directed corporate technology strategy, and intellectual property.  Under his leadership, STI pioneered the development and manufacturing of wireless RF front-end systems that operated 24/7 in 7,000 cellular base stations across the US.  In 2012, Dr Hammond co-founded Resonant Inc, where he was CTO and is now CTO Emeritus.  Dr Hammond has authored hundreds of technical papers and holds several dozen patents.

Resonant Publications

Second-Order Analytic Extension of Eigenvalues for Fast Frequency Sweep Analysis of RF Circuits
IEEE Transactions On Microwave Theory And Techniques (April 4, 2021).

On the Efficiency of Excitation of High Coupling Plate Acoustic Modes
Conference: Ultrasonics Symposium (IUS)2020 IEEE International (Jan. 2021) 

Fast Frequency Sweep Analysis of Passive Miniature RF Circuits Based on Analytic Extension of Eigenvalues
IEEE Transactions On Microwave Theory And Techniques (Jan. 1, 2021) 

Quasi‐static numerical modeling of miniature RF circuits based on lumped equivalent circuits
International Journal of Numerical Modelling (August 24, 2020)

Fast GPU-Assisted FEM Simulations of 3DPeriodic TCSAW, IHP, and XBAR Devices
International Ultrasonics Symposium (IUS)Glasgow, Scotland, October 6-9, 2019.
Conference: IEEE IUS 2019 (Nov. 2019)

5 GHz Band n79 wideband microacoustic filter using thin lithium niobate membrane
Electronics Letters (Aug. 22, 2019)

 

Julius Koskela, Ph.D., Consultant

Julius Koskela received his M.Sc. and Dr.Tech. degrees in technical physics in 1996 and 2001, respectively. He joined the Nokia Research Center. Since 2005, he has been with Philips Healthcare. He was a Consultant in SAW modeling with GVR Trade SA, Gorgier, Switzerland, currently a wholly owned subsidiary of Resonant Inc., CA, USA. His professional interests include SAW modeling and physics, algorithm development, and medical image processing. Dr. Koskela is a co-recipient of the IEEE UFFC-S Outstanding Paper Award 2001. He is passionate about rapid computational techniques, and enjoys living in the diffuse space between research and product development.

Resonant Publications

Fast GPU-Assisted FEM Simulations of 3DPeriodic TCSAW, IHP, and XBAR Devices
International Ultrasonics Symposium (IUS)Glasgow, Scotland, October 6-9, 2019.
Conference: IEEE IUS 2019 (Nov. 2019)

 

Neil Rice, Member of Technical Staff

Neil Rice has worked at Resonant since 2016. Before that he earned a Bachelor’s degree in Physics at University of California, Santa Barbara. Currently, he is studying computer science at The George Washington University in Washington, DC.

Resonant Publications

The ARCONS Pipeline: Data Reduction for MKID Arrays
arXiv.org (July 20, 2015)

 

Patrick Turner, Ph.D., Vice President of Technology

Patrick Turner received the B.Sc. degree in physics from McMaster University, Hamilton, ON, Canada, in 1997, and the M.Sc. and Ph.D. degrees in physics from the University of British Columbia, Vancouver, BC, in 1999 and 2005, respectively. He received the Canadian National NSERC Post-Doctoral Fellowship from 2005-2007 at Simon Fraser University, Burnaby, BC. His area of research was microwave  properties of unconventional superconductors.  In 2007, he joined Superconductor Technologies Inc. (STI), Santa Barbara, CA, focused on high-performance RF filter products for commercial cell phone base-stations and government systems including the development of a new surface acoustic wave filter design capability. In 2012, he joined Resonant Inc., Santa Barbara, CA, focused on developing acoustic wave filter technology for cellular handsets. He has coauthored over 35 technical papers and holds 16 issued U.S. patents. 

Resonant Publications

5 GHz Band n79 wideband microacoustic filter using thin lithium niobate membrane
IET Electronics Letters (Aug. 1, 2019)

 

Ventsislav Yantchev, Ph.D., Consultant

Dr. Ventsislav Yantchev’s specialty is micro-acoustic RF components with broad experience in theory, design, fabrication and characterization. Dr. Yantchev serves as Associate Professor at Uppsala University, Sweden, He has been Guest Professor at Chalmers University of Technology, Sweden, and a design consultant in RF SAW/BAW/LWR technologies (Q-Arts Consulting Ltd). Dr. Yantchev was granted the Younger Researcher award by the Goran Gustaffson Stiftelse, Sweden in 2009. His technical competencies include engineering physics, microelectronics, electrical engineering, micro-fabrication, RF-characterization, COM and FEM based device design, SAW, BAW and Lamb Wave physics and devices.
His main R&D activities cover conceptual & experimental design of new SAW/BAW/Lamb Wave as well as pMUT components for frequency control and sensing applications.

Resonant Publications

A Four Parameter Microfluidic Tandem SAW-IS Bio- Sensor
Conference Paper • Nov 2019 

Analysis of XBAR resonance and higher order spurious modes
Conference Paper • Nov 2019