Engineering
4+ years of collective professional experience in wireless power, radio frequency and semiconductor technologies.
Hardware Automation
Automated data acquisition and post processing.
Tools
Software
- MATLAB | commercial modeling, data acquisition & processing, and computing software
- Ansys HFSS | commercial finite element method solver for electromagnetic structures
- Pathwave ADS | commercial RF electronics structure simulator
- LTspice | free general purpose analog electronic circuit simulator
- FEMM | free open-source finite element method solver for electromagnetic structures
My Scripts
- LinkBudgetOptimize_RF.m | MATLAB-based algorithm developed to optimize component selections and stage order in RF cascade analysis
- CleanSignal.m | MATLAB-based algorithm developed to anneal differential equations for mechanical oscillators
Data Visualization / Results Reporting
Professional lab reports, PowerPoint presentations and graphs.
Tools
Software
- MS PowerPoint | software for slideshow presentations
- MS Excel | software for budgeting, chart creation, data analytics
- LaTex | typesetting system for creating scientific and technical documents
- R | software for statistical computing and data visualization
- MATLAB | commercial software for modeling, data acquisition & processing, and computing
PCB Design
Materializing sustainable designs – responsive to incoming technological advances, resistant to inventory shortages, and adaptable to component obsolescence.
Tools
Software
2D / 3D CAD
Chassis, fixtures and engineering drawings – modeling with dimensional fidelity, material compatibility, and adherence to fabrication requirements.
Tools
Software
Simulation
Proving the future – realistic emulators for technology products and pre-production concepts.
Tools
Software
- MATLAB | commercial modeling, data acquisition & processing, and computing software
- Ansys HFSS | commercial finite element method solver for electromagnetic structures
- Pathwave ADS | commercial RF electronics structure simulator
- LTspice | free general purpose analog electronic circuit simulator
- FEMM | free open-source finite element method solver for electromagnetic structures
My Scripts
- LinkBudgetOptimize_RF.m | MATLAB-based algorithm developed to optimize component selections and stage order in RF cascade analysis
- CleanSignal.m | MATLAB-based algorithm developed to anneal differential equations for mechanical oscillators
Test Engineering / Electronics Repair
Validating product reliability and ensuring resilient restorations.
Tools
Hardware
- Handheld Digital Multimeter
- 12V DC Voltage Supply
- Circuit Components | logic ICs, resistors, capacitors, diodes, switches, etc.
- Solder Iron
- 221mm x 183mm Breadboard
Education
Alma Mater
Kennesaw State University
Physics B.S. with a concentration in Electrical Engineering
2023
Professional Experience
Industries
- Spintronics
- Aerospace
- Military
- Consumer Electronics
- Mobile Wireless Power
Featured Publications
Effects of Gadolinium Precursors on the Magnetic Properties of Gadolinium-doped Gallium Nitride for Spintronic Applications (5 March 2022)
Vishal Saravade, Austin Crawford, Jahne Williams, Chuanle Zhou, Na Lu, Benjamin Klein, Ian Ferguson
SPIE OPTO, Proceedings Volume 12009, Quantum Sensing and Nano Electronics and Photonics XVIII
Abstract: The role of metal-organic precursors specifically gadolinium precursors on the resulting magnetic properties of gadolinium-doped gallium nitride (GaGdN) is investigated. Gadolinium-doping is expected to render spin-related magnetic properties in GaN for spintronic applications. To achieve and understand this, GaGdN was grown using metalorganic chemical vapor deposition using two types of gadolinium precursors - tris (2,2,6,6-tetramethyl-3,5- heptanedionate) gadolinium ((TMHD)3Gd) and tris(cyclopentadienyl) gadolinium (Cp3Gd). GaGdN grown using (TMHD)3Gd showed Anomalous Hall Effect and ferromagnetism at room temperature (RT). GaGdN grown using Cp3Gd showed ordinary Hall Effect with no signs of ferromagnetism or any spin polarization. Oxygen from (TMHD)3Gd incorporated in GaGdN during the MOCVD growth could be responsible for the differences in magnetic properties. GaGdN shows properties at RT that are conducive for spintronic applications. However, metal-organic precursors and corresponding presence of oxygen significantly influence the spin-related capabilities of GaGdN. This work contributes towards understanding the mechanisms for spin-related properties of GaGdN that can enable its RT spintronic applications.
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Substantiating Ferromagnetism in Boron-Carbide-and-Manganese-Doped Gallium Nitride for Room Temperature Spintronics Applications (under review for publication, 2024)
Jahne Williams, Vishal Saravade, Benjamin Klein, Ian Ferguson, Zhe Chuan Feng, Manika Tun Nafisa, Mounika Ramichetty, Ikram Talukder
Abstract: The objective of this study is to observe the anomalous Hall effect (AHE) in room-temperature gallium nitride doped with boron carbide and manganese (B4CMnGaN) in order to substantiate the ferromagnetic nature of B4CMnGaN. Evidence of ferromagnetism in B4CMnGaN was found by measuring the electrical resistance response of a B4CMnGaN sample as a function of a sweeping magnetic field: eventual resistance saturation, indicative of magnetic domain alignment in the B4CMnGaN, and resistance hysteresis due to the magnetic field. These results indicating strong intrinsic magnetic interactions in B4CMnGaN provide motivation for further investigation of the use of B4CMnGaN in room temperature spintronics.