28-GHz Foldable Reflectarray

Affiliate: University of Hawaii at Manoa

Toolset: Ansys HFSS, Network Analyzer, Excel

Summary: Designed and simulated a 28 GHz unit cell in HFSS and a foldable 8×8 1-bit reflectarray using rectangular patch elements to achieve ±32° beam steering at normal incidence with low power loss. Fabricated and measured S21 performance of the reflectarray at different folds in an anechoic chamber using a FieldFox N9951B

CMOS Undervoltage Lockout Circuit

Affiliate: University of Hawaii at Manoa

Toolset: LTspice, Excel

Summary: Adapted and simulated a published circuit in LTspice to protect loads by disconnecting the supply below a defined voltage, implementing pre-regulation, biasing, hysteresis control, and output buffering. Characterized trip thresholds, hysteresis, slew behavior, and temperature dependence using DC, transient, and parametric simulations, identifying performance degradation at extreme temperatures

1-bit PIN-Diode Based RIS

Affiliate: RIS Electronics

Toolset: Ansys HFSS, Network Analyzer, FreeCAD, Arduino

Summary: Researched, designed, fabricated, and tested reflectarrays utilizing PIN diodes and liquid metal for rapid prototyping, allowing directional signal reflection at different sub-6 GHz bands relevant to 5G systems

House Finders

Affiliate: University of Hawaii at Manoa

Toolset: HTML/CSS, Bootstrap, React, Typescript, PostgreSQL, Git, VS Code

Summary: A web application built with React and Typescript for the frontend and PostgreSQL for the backend, allowing users to search for houses based on various criteria, view detailed listings, and list rentals. Implemented responsive design using Bootstrap.

4-Bit ALU (FPGA)

Affiliate: University of Hawaii at Manoa

Toolset: Hardware engineering, FPGA, SystemVerilog, Vivado

Summary: Involved designing and implementing a 4-bit ALU circuit in SystemVerilog by integrating registers, a multiplexer, and an ALU core to perform arithmetic and logic operations. The design was synthesized and deployed on a Basys 3 FPGA using Vivado to ensure that it executes in real-time with hardware.

3.5-GHz Static Metasurface

Affiliate: RIS Electronics

Toolset: Ansys HFSS, Network Analyzer, Excel

Summary: A static metasurface designed for rapid prototyping using galinstan liquid metal to reflect electromagnetic waves operating at 3.5 GHz to a specific direction.

4-Bit ALU (Logic Gate Design)

Affiliate: University of Hawaii at Manoa

Toolset: SystemVerilog, Falstad, EDA Playground

Summary: A 4-bit arithmetic logic unit (ALU) that performs eight basic operations was designed using Falstad and EDA Playground as the final project for my intro to digital design class.

Scrolling Sign

Affiliate: University of Hawaii at Manoa

Toolset: SystemVerilog, Falstad

Summary: A finite state machine was designed to build a circuit for a scrolling door sign that displayed 'ALOHA' when an office is open, and 'PAU' when it is closed with custom logic.

Connect Four Game

Affiliate: Personal Project

Toolset: C

Summary: A simulation of the real game 'Connect 4' was programmed and can be run in a console.

Team member of RIS Electronics

Affiliation: University of Hawaii at Manoa

Location: Honolulu, HI

Date: August 2024 - December 2025

Experience: Conducted research on reconfigurable conductive structures for 5G beam-steering systems, including millimeter-wave applications, using electrical components such as PIN diodes. Contributed in all phases of the project. Designed, simulated, fabricated, and tested RIS and reflectarray prototypes to redirect normally incident signals toward targeted angles at specific frequencies. Applied signal-processing techniques, including VNA time-gating and memory-noise subtraction, to isolate and analyze the main reflection paths.