George Alexopoulos Email & Phone Number

Stanford, Ca, Us

Stanford, Ca, Us

Stanford Integrated Biomedical Systems (Dr. Ada Poon)• Investigating the application of quantum mechanical concepts such as parity-time (PT) symmetry and multi-resonator theory to achieve high-degree-of-freedom, multiple resonant mode (frequency) electronic coupled-resonator systems for wireless readout and actuation• Mathematical modeling and solving of electronic coupled multi-resonator system response• Broadband (DC to low mm-Wave) electromagnetic modeling and optimization of capacitive and inductive coupling methods in the presence of dielectric media in HFSS and CST• Modeled and designed real-time, coupling-insensitive wireless resistive sensing system using nonlinear PT symmetric electronics• Co-authored chapter reviewing and analyzing the performance and sensitivity of state-of-the-art wireless readout techniques in biomedical applications• Leveraging coupling-insensitive characteristics of nonlinear PT-Symmetric electronics in matching networks• Design and modeling of capacitive stimulation/actuation system for chip-in-cell applications• Design and modeling of high-order, high-frequency, PT-Symmetric, multi-electrode sensing platform for chip-in-cell applications in Cadence and HFSS

Stanford, Ca, Us

• Summer 2018: ENGR 040M• Fall 2018: EE 315• Fall 2018: EE 242• Winter 2019: EE 252• Spring 2019: EE 101B• Fall 2019: EE 242• Spring 2020: EE 101B• Fall 2020: EE 242• Winter 2021: EE 225

Stanford, Ca, Us

• Taught topics in graduate electromagnetics including optical waves in layered media, guided waves, electromagnetic computation, and electromagnetic radiation for one quarter under Professor Jonathan Fan • Taught in an online-only format during the Fall 2020 quarter• Received average rating of 4.1/5.0 on student-based course evaluations

Stanford, Ca, Us

EE 303–Autonomous Implantable Systems• Taught topics in implantable devices including sensors, energy harvesting, stimulation/actuation, and applications for two quarters under Professor Ada Poon • Taught in an online-only format during the Spring 2020 quarter• Received average rating of 4.3/5.0 on student-based course evaluations

Stanford, Ca, Us

EE 216 - Principles and Models of Semiconductor Devices• Taught semiconductor device topics including material and energy band physics, PN & MS diode physics, optical devices, and transistor physics for two quarters under Professors James Harris, Roger Howe, and Eric Pop • Designed and graded problem sets and midterm/final exams• Taught and reviewed course topics in weekly office hours and review sessions recorded live by the Stanford Center for Professional Development (SCPD) for more than 50 on-campus and remote students• Received average rating of 4.5/5.0 on student-based course evaluations

Stanford, Ca, Us

DC-Terahertz Group (Dr. Amin Arbabian)• Designed microwave non-contact thermoacoustic tracking system for medical interventional devices• Optimized microwave power deposition in biological tissues through HFSS and ANSYS Multiphysics packages• Performed dielectric characterization of human phantom materials• Created a 2-D trilateration setup achieving mm-scale tracking accuracy using an array of CMUTs (capacitive micromachined ultrasound transducers) to detect the location of the device in a human tissue phantom• Modeled 3D pressure wave generation and propagation through the Matlab k-wave toolbox• Performed signal analysis using short time FFT, cross-correlation, and other signal processing techniques• Worked extensively with laboratory/measurement equipment including signal generators, power amplifiers, oscilloscopes, VNAs, as well as protocols for measurement acquisition and control

San Diego, Ca, Us

• Worked under the supervision of Dr. Mazhareddin Taghivand and Dr. Kamal Aggarwal• Analyzed performance of polar vs Cartesian (I/Q) transmitter architectures for low PAPR and high power efficiency applications• Designed a full-scale TX radio for low output power IoT/WiFi applications• Achieved high-efficiency performance for full transmit chain including D/A conversion• Trained extensively with IC schematic and layout tools in Cadence including PeakView for transformer/transmitter co-design

Atlanta, Georgia , Us

• Developed fully automated system in NI LabView to measure & optimize antenna gain vs. spatial orientation• Learned calibration techniques, measurement setup, and load/source-pull measurements on Maury ATS and IVCAD software for NSF-funded research on microfluidics in power amplifier design• Developed ADS and HFSS simulation models for frequency-tunable matching networks over microfluidic channels on organic substrates for a class-A power amplifier design• Designed and created photolithography masks in HFSS & ADS for wideband hybrid encapsulated package integrating multiple semiconductor and interconnect technologies on one organic platform• Designed wideband (2-20 GHz) Wilkinson Power Divider and Balun for 1×4 dipole antenna array in HFSS

Atlanta, Georgia , Us

• Patrolled and monitored over 6 different residence halls for safety and security.• Planned and executed programs based on Institute learning goals (personal development, professional development, community development, service, and cultural development) for mostly freshman residents. Examples include political discussions during the 2012 elections, intramural sports, visits to Atlanta locations such as the Shakespeare Tavern, the High Museum, Phillips Arena, etc.• Planned and executed community service opportunities such as Tech beautification Day, Game Day Recycling, Tech Day of Service, City of Refuge Homeless Shelter, etc. with the goal of allowing residents to connect with and help people outside of their socioeconomic status.• Residence Assistant of the Year (2012-2013)

Doctor Of Philosophy - Phd, Electrical And Electronics Engineering

Master Of Science - Ms, Electrical And Electronics Engineering; Master'S In Electrical Engineering

Bachelor’S Degree, Electrical And Electronics Engineering; Minor, Energy Systems