Cristian Cassella

Associate Professor,  Electrical and Computer Engineering



  • 422 ISEC
  • 617.373.7509

Research Focus

Acoustic resonators, nonreciprocal components, zero-power sensors for IoT, nonlinear dynamics, ultrasonic transducers


  • PhD, Carnegie Mellon University, 2015

Honors & Awards

Research Overview

Acoustic resonators, nonreciprocal components, zero-power sensors for IoT, nonlinear dynamics, ultrasonic transducers

Microsystems Radio Frequency Laboratory

Our goal is to explore unveiled fundamental physics, in micro and nano devices, to surpass the performance limitations of currently available communication and sensing systems.

Microsystems Radio Frequency Laboratory

Department Research Areas

Selected Publications

  • H.M.E. Hussein, M. Rinaldi, M. Onabajo, C. Cassella, A chip-less and battery-less subharmonic tag for wireless sensing with parametrically enhanced sensitivity and dynamic range. Sci Rep 11, 3782 (2021).
  • X. Zhao, L. Colombo, Cristian Cassella, Aluminum Nitride Two-Dimensional-Resonant-Rods, Applied Physics Letters, 116(14), 2020, 143504
  • H.M. Hussein, M.A. Ibrahim, G. Michetti, M. Rinaldi, M. Onabajo, C. Cassella, Systematic Synthesis and Design of Ultra-Low Threshold 2:1 Parametric Frequency Dividers, IEEE Microwave Theory and Techniques, 2020
  • C. Cassella, J. Segovia-Fernandez, High K2⁄t Exceeding 6.4% Through Metal Frames in Aluminum Nitride 2-D Mode Resonators, IEEE transactions on Ultrasonics, Ferroelectrics, and Frequency Control 66(5), 2019, 958-964
  • J.M. Puder, J.S. Pulskamp, R.R. Rudy, C. Cassella, M. Rinaldi, G. Chen, S. Bhave, R.G. Polcawich Rapid Harmonic Analysis of Piezoelectric MEMS Resonators, IEEE Transactions on Ultrasonic Ferroelectrics, and Frequency Control, 6(65), 2018, 979-990
  • G. Chen, C. Cassella, T. Wu, M. Rinaldi, Single-Chip Multi-Frequency Wideband Filters Based on Aluminum Nitride Cross-Sectional Lamé Mode Resonators with Thick and Apodized Electrodes, IEEE Micro Electro Mechanical Systems, 2018, 775-778


May 07, 2024

Announcing Summer 2024 PEAK Experiences Awardees

Several engineering and science students mentored by COE faculty are recipients of Northeastern’s Summer 2024 PEAK Experiences Awards from the Office of Undergraduate Research and Fellowships.


Apr 11, 2024

Novel Approach to Wireless Ranging for UVs in GPS-Denied Environments

ECE Postdoctoral Research Associate Hussein Hussein’s research, “Passive Frequency Comb Generation at Radiofrequency for Ranging Applications,” was published in Nature Communications.


Feb 26, 2024

Northeastern Among Top 100 Universities for Utility Patents

Northeastern University, recognized for its excellence in innovation and entrepreneurship, has once again been named one of the top 100 universities worldwide for securing utility patents by the National Academy of Inventors.


Feb 20, 2024

Using Ultra-Efficient Ising Machines for Complex Problem Solving

Research on “parametric frequency divider based Ising machines” conducted by Nicolas Casilli, E’21, MS’21, PhD’26, electrical engineering, in Associate Professor Cristian Cassella’s lab, was accepted for publication in Physical Review Letters.

Cristian Cassella


Feb 09, 2024

Cassella Joins Fulbright Specialist Roster

ECE Associate Professor Cristian Cassella was recommended by a panel of the U.S. Department of State’s Bureau of Educational and Cultural Affairs (ECA) and World Learning to join the prestigious Fulbright Specialist Roster for a tenure of three years.


Feb 01, 2024

Faculty and Staff Awards 2024

The College of Engineering recognized faculty and staff at the annual faculty and staff awards event and thanked everyone for their hard work and dedication in support of our students, college, and university during the 2023-2024 academic year. View award recipients and photo gallery.

Cristian Cassella


Oct 24, 2023

Improving RF Resonator Technology

ECE Associate Professor Cristian Casella and electrical engineering student Xuanyi Zhao, PhD’23 were awarded a patent for “Two dimensional rod resonator for RF filtering.”


Sep 22, 2023

Creating New Sensor Technology

ECE Associate Professor Cristian Casella and Professor Matteo Rinaldi were awarded a patent for “Subharmonic tags for remote continuous and threshold sensing.”


May 18, 2023

Casilli Wins Best Paper Award at IFCS-EFTF 2023

Electrical engineering student Nicolas Casilli’s, E’21, MS’21, PhD’26, was awarded the best paper award at the IEEE International Frequency Control Symposium and the European Frequency and Time Forum (IEEE IFCS-EFTF 2023) for his paper “An Ising Tag with a LiNbO3 Resonator for Temperature Threshold Sensing.” Casilli is advised by ECE Assistant Professor Cristian Cassella. Related […]


May 10, 2023

Casilli Nominated as Finalist in IFCS-EFTF 2023 Best Student Paper Competition

On May 17, electrical engineering student Nicolas Casilli, E’21, MS’21, PhD’26, will present his paper “An Ising Tag with a LiNbO3 Resonator for Temperature Threshold Sensing” as an invited speaker at IEEE IFCS-EFTF 2023.

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