​Wilkinson Power Divider
This project was conducted as part of EECE 5693: EM Devices at Northeastern University. Over the course of May and June 2024, my partner and I focused on the design, simulation, and testing of a 2-way Wilkinson Power Divider optimized for 2.45 GHz. Using Keysight Genesys for circuit schematics and Ansys HFSS for 3D simulation, we aimed to perfect the device's electromagnetic performance on a Rogers RO4003C substrate.
The practical part of the project involved milling the PCB using LPKF technology and integrating SMA ports and surface mount resistors for testing. These steps were crucial in evaluating the power divider's performance, specifically in terms of power distribution and isolation across the intended frequency band.
The timeline for this detailed project spanned two months, culminating in a presentation to teaching assistants and a comprehensive report submitted to the professor.
Projects
SPEC-Drone
This project was part of EECE4901: Capstone 1 and EECE4902: Capstone 2 at Northeastern University under the guidance of Professor Masoud Salehi, which spanned six months from July 2024 to December 2024. A team of six students collaborated to design, build, and test a high-voltage electrode-based solar panel cleaning mechanism deployed via a drone. The project aimed to address the widespread issue of dust accumulation on solar panels using a Solar Panel Electrode Cleaning Drone (SPEC-Drone), which eliminates the need for water, scrubbing, and manual labor of solar panel cleaning.
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The system comprised five key subsystems: a drone, winch, cleaning mechanism, solar panel housing, and high-voltage system. A GPS-equipped drone provided by Northeastern University’s Aerospace Club used a mounted winch to lower and raise the cleaning mechanism. This mechanism employed a linear actuator to move an aluminum electrode, displacing dust with electrostatic force while compressed air blew the particles away. A distance sensor ensured the electrode maintained a safe gap from the panel, which featured conductive Indium Tin Oxide-coated glass as the bottom electrode. A high-voltage system produced a 0–10 kV DC output controlled via a potentiometer to create the necessary electrostatic current. WiFi-enabled ESP32 microcontrollers facilitated seamless communication between subsystems, ensuring cohesive operation. The project underwent rigorous testing of individual subsystems before integration and concluded with a successful full-system demonstration.
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This project was presented at the Capstone Showcase on December 6, 2024, where it competed against 20 other innovative projects. A panel of 11 IEEE leaders awarded it second place.
E-Waste: Pathways to Sustainability
In the context of Northeastern University's ENGW 3302: Advanced Writing in the Technical Professions in Fall 2023, I initiated a comprehensive electronic waste (e-waste) project. This study was driven by my interest in the sustainability of consumer electronics and the need for environmentally responsible practices in electronic development.
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The project's aim was to dissect the lifecycle of electronic products and the environmental impacts of e-waste. My approach involved extensive research into the production, usage, and disposal of electronics, focusing on the associated environmental and health hazards. This included examining sustainable practices, consumer behaviors, and regulatory frameworks related to e-waste.
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My findings were consolidated into a report that not only presented an in-depth analysis of e-waste but also proposed practical solutions for its reduction. These recommendations addressed product design improvements, recycling policy enhancement, and consumer education.
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This endeavor enhanced my skills in technical writing and research, deepening my understanding of technology's role in sustainability. It underscored the importance of clear communication in addressing complex environmental issues and solidified my commitment to sustainable electronic development.
ECG Heart Monitor
This project was part of EECE 2150: Circuits and Signals: Biomedical Applications. Circuit Theory, Signal Processing, and MATLAB were used to create an electrocardiogram (ECG), which could process electrical signals produced using multiple nodes and show the user's heart rate.
The circuit design consisted of three main components: an instrumentation amplifier to amplify the difference between the voltage of two points on the body, a high-pass amplifier to eliminate the DC voltages associated with the electrodes or static position of the body (avoiding saturation), and a low-pass amplifier to eliminate the noise outside the bandwidth of the ECG signal (avoiding aliasing). The listed components were placed in that specific order.
The timeline of the full circuit design was a month long and was to be presented to the TAs and written formally for the professor in a report by the end of the Fall 2022 semester.
Self-Tutor Translator
This project was a python program that would prompt a user to say something in English and then press a key when done. The program would then print what was perceived to be said by the user, then print “What language would you like this in?” From there, the user can type any language that they want their words to be translated in. The program would then find that language to then be printed and then repeated in that certain language chosen by the user. The user can then choose to continue to translate some more.
The project was one of the multiple program tasks asked to be completed in the Northeastern University course EECE 2140: Computing Fundamentals for Engineers. The program was intended for users wanting the ability to communicate with other people who may not know English extensively to accommodate them or to simply learn a new language.
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There were four main classes within the system that were essential for the most significant part of the code, which was imputing the voice and translating it. These classes are called Mic, Translation, UseTranslation, and GenerateLang. The trajectory of the project was completed in a 2-month span by the end of the Fall 2022 semester.
Harnessing Heat Energy as a Sustainable Solution
This project was a prototype that harnessed electrical energy from a heat gradient using Peltier modules. These Peltier modules were based on the Seebeck effect, a phenomenon in which two dissimilar conductors or semiconductors in a loop are heated, causing the valence electrons from the hot side to move to the colder side and produce a direct current when connected.
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The project idea stemmed when given the task to create an engineering solution for Northeastern University's first-year course GE 1501/1502: Cornerstone of Engineering 1 & 2 to complete during the Fall 2021 semester. The intention of this project was to create a more sustainable solution using wasted heat energy in the world.
During the three months of the project, I led our five-person group as the project manager and main component solderer. I also supported other members' Solidworks modeling and testing.
The finalized prototype could produce 16 V with a 100° C heat difference. Through more testing, the prototype should have a linearly positive relationship between an increase in voltage and an increase in temperature. Through further investigation of practical use, the prototype could have been modified for the use of a camping stove and a garden fire pit. The research paper was recognized and presented to be presented by the American Society for Engineering. This presentation was in the following Spring 2022 semester, which was hosted by Wentworth Institute of Technology. ​
City of Brooklyn Park Department Network Devices Capestone
The Capstone for the Information Technology Department for the City of Brooklyn Park was to report the network cable and component arrangement during the city department move in the Summer of 2019. This was a three-month capstone in which I crimped ethernet cables, tested and installed network devices, and attended to service desk requests concerning the department moves in the Brooklyn Park City Hall, Fire Departments, and Recreation Center.
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These 3-month tasks took on my combined ability to be of service to the community and technical aptitude to progress the city's departments before construction was initiated in the following Fall. By the end, I was able to present the various areas of information technology that I explored while completing the capstone, such as applications, networks, and Geographic information systems.
