Title: An Additive Approach to the Shape Synthesis of Microstrip Circuits and Antennas
Authors: Nick Cardamone, Amal Mohammed, Igor Aćimović, and Derek A. McNamara
Conference: IEEE Antennas and Propagation Symposium (AP-S), 2025
This paper introduces an additive shape synthesis approach for designing microstrip circuits and antennas. Instead of relying on predefined elements, this method builds RF/microwave layouts dynamically by iteratively adding conducting shapes within a defined space.
An evolutionary algorithm optimizes these layouts based on full-wave Computational Electromagnetics (CEM) simulations, refining the geometry to meet performance targets. The approach was successfully applied to a bandpass filter, demonstrating its effectiveness in generating high-performance layouts without traditional RF design heuristics.
Future work will extend this method to matching networks, power dividers, and arbitrary transmission line structures, making data-driven RF circuit synthesis more accessible.
Title: Controlling a Buck Converter with a Neural Network
Author: Nick Cardamone
Course: Modern Control Systems, University of Ottawa
This paper explores the feasibility of controlling a buck converter using a neural network instead of traditional PID control. A NARMA L2 controller from MATLAB's Deep Learning Toolbox was used in simulation, showing that an intelligent control system is possible.
Key insights:
Title: SEPIC Converter as a Constant Current Controller for a LED Desk Lamp
Author: Nick Cardamone
Course: Electronics III, University of Ottawa
This project involved designing and building a constant current LED driver using a Single-Ended Primary Inductor Converter (SEPIC). The converter was optimized through:
Results showed the SEPIC converter successfully regulated LED current, but challenges included undesirable frequency deviation and suboptimal efficiency (max 72%). Future improvements could focus on reducing switching losses and enhancing thermal management.