At Xadite, we are leading the forefront of advanced technologies. Founded on our n-phonic energy detector (NED) passive radar technology, we are now offering engineering services tailoring RF, analog and digital sensing techniques to a number of customer products. In addition to advanced sensing, we’re leading new product development for customers in a number of industries, implementing Bluetooth, Cellular and Wi-Fi wireless datalogging solutions for new and existing products. While designing the customer's hardware platform to their needs, we develop the supporting firmware, and apply our knowledge for intelligent signal processing and sensor fusion techniques, to produce a robust and advanced sensing system.

At part of the Mechatronics Electrical Engineering team at Diebold Nixdorf, I had the opportunity to work with some of the most skilled engineers in the region. At DN, I developed an advanced sensing circuit board, enabling the next generation of ATM security. This board utilized multiple infrared time of flight sensors, ambient light sensor and temperature sensor. With sensor fusion, advanced ATM security functionality can now be implemented on the next generation ATMs. In addition to designing the circuit board, I wrote firmware for STM32, and Infineon XMC1300 to configure, calibrate, and read data from the sensors. I moved this design from the concept phase to production. Along the way, I worked with contract manufacturers for production PCB layout and schematic updates, as well as part change requests. Additionally, team design reviews were conducted regularly. Upon receiving the first batch of boards, they were tested and found to be fully functional with no design updates necessary.

At G-Angel, we are commercializing the next generation of autonomous IV access systems by enabling those with chronic health conditions to cut out costly in-home nurse visits for IV medication infusion services.Our team adamantly pursued the commercialization of our patented, Portable Intelligent Venipuncture (PIV) technology in partnership with The University of Akron. This technology has the potential to revolutionize IV medication infusion and blood collecting practices that could improve healthcare worldwide.

Lead and supported a small cross functional team, moving a medical pump device from prototype into production. Developed basic project timelines, assessed and managed team’s progress on assignments relative to the project schedule. Sourced production mold manufacturer in China and supported the mechanical DFM process. Sourced supplier for circuit board assembly. Reported status of the project to the customer weekly or bi-weekly. Managed electrical and mechanical engineering team, as well as firmware, UX development and prototype fabrication and assembly. Performed electrical and mechanical design reviews. Processed engineering changes and made recommendations based upon sound engineering principles.

An analog co-processor was developed to create a hybrid computer that solves linear and nonlinear partial differential equations (PDE), used to compute solutions to the wave equation in real time. A cascode differential amplifier with active load and current mirror was designed in Cadence using CMOS technology. This amplifier topology was slightly modified and served as a fundamental element of the op-amps that were used in the co-processor. We had the analog co-processor fabricated on one chip and it was wire-bonded to a test board. A ROACH Xylinx based FPGA was programmed for basic DAC and ADC functionality. The ROACH was used by the team to inject test signals and record the results of the analog co-processor's computation. Additionally, a printed circuit board was designed for a board-level op-amp based implementation of a linear PDE solver. An analog circuit based implementation of the patented Akron Fast Fourier Transform (akFFT) was developed for 5G orthogonal frequency division multiplexing (OFDM) style wireless communications. A high performance computer, based on the scalable Skylake SP 'Purley' platform (socket 3647) launched Q3'17, was built from the ground up. With this machine, digital GPU based simulations were implemented using the CUDA C programming language. Similar simulations were also developed in C. These digital C and CUDA C simulations were used to set speed and power benchmarks that the analog co-processor would compete with.

For this research, a quasi-optical mmWave system operating in the frequency range of 57 GHz to 67 GHz was designed in order to measure Faraday rotation imparted on millimeter waves (mmWs) as they propagate through magnetoelastic multiferroic materials. My contributions to this research include the design of numerous mechanical parts for the system and simulations of electromagnetic propagation through nanowire arrays. The design of this apparatus was presented at the 2017 Cognitive Communications for Aerospace Applications Workshop. The design is published and is available on the IEEE Xplore website:http://ieeexplore.ieee.org/document/8001875/The process of depositing nickel into porous membranes was presented at the 2017 IEEE International Conference on Nanotechnology. This deposition process is published and will be available on the IEEE Xplore website soon.Three-dimensional FDTD simulations were used to examine the effects that the geometric arrangement of dielectric nanowires has on the intensity distribution within the nanowires, surrounding dielectric membrane, and free space volumes behind the dielectric material at optical wavelengths. These simulations were presented at the 2017 IEEE International Conference on Nanotechnology, were published as proceedings and will be available on the IEEE Xplore website soon. Similar nanowire simulations were presented earlier in poster format at the 2016 Annual Fall Meeting of the Ohio-Region Section American Physical Society (OSAPS): http://meetings.aps.org/Meeting/OSF16/Session/B1.24 These simulations are a necessary step toward future models of membranes containing ferromagnetic nanowires.Funding for this work was provided in part by an REU supplement for NSF Award 1509754.For additional information visit the ZEN-Lab site: https://blogs.uakron.edu/zen-lab/

This research experience mainly involves implementing the finite difference time domain (FDTD) method of electromagnetic (EM) simulation. This technique is used for EM simulations that aid in the exploration of innovative ideas relating to nanostructures for photovoltaic or communication applications. The FDTD method of electromagnetic simulation has been realized using C code. Three-dimensional FDTD simulations of with periodic boundary conditions have been used to examine the effects that the geometric arrangement of dielectric nanowires has on the intensity distribution within the nanowires, surrounding dielectric membrane, and free space volumes behind the dielectric material at optical wavelengths. Additional simulations involving silver and silicon parabolic mirrors have been performed.