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Hello, I'm

Shenal Ranasinghe

I build RF & Electronic Systems

RF & Microwave Engineering | Antenna Design Enthusiast | RFIC Design Enthusiast | Electronic & Telecommunication Engineering Undergraduate University of Moratuwa

Shenal Ranasinghe Shenal Ranasinghe

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About Me

I'm a final-year Electronic and Telecommunication Engineering undergraduate at the University of Moratuwa, Sri Lanka, maintaining a CGPA of 3.63/4.00. I've always been fascinated by how invisible signals bring the world together — a curiosity that naturally drew me toward RF and Microwave Engineering, RFIC design, Antenna Design, and Embedded Systems.

I previously worked as an Embedded Systems Engineering Intern at Paraqum Technologies (Pvt) Ltd, where I contributed to developing advanced RF and embedded solutions. Later, I worked as a Part-Time Electronic Engineer at Sentranova (Pvt) Ltd from March 2025 to September 2025, gaining valuable hands-on experience in hardware design, system integration, and real-world product development.

Currently, I'm focused on my final-year project and several ongoing research and design ventures that push my understanding of RF/microwave circuits, IC layout, and wireless communication systems. I'm passionate about turning complex engineering challenges into elegant, high-performance solutions that blend theory, design, and innovation.

Education

BSc.Eng(Hons) in Electronic & Telecommunication Engineering

2021 - Present

University of Moratuwa, Sri Lanka

CGPA: 3.63/4.00

Focus: RF & Microwave Engineering, RFIC Design, Embedded Systems Engineering, Antenna Engineering

G.C.E. Advanced Level - Physical Science Stream

2018 - 2020

St. Joseph's College, Colombo 10

Results: 2 As and 1 B

Z-Score: 2.1064

Experience

Part-Time Electronic Engineer

March 2025 - September 2025

Sentranova (Pvt) Ltd

  • Developed firmware for a smart soap dispenser integrated with a Quectel EG9 series 4G module.
  • Implemented HTTPS API communication with SSL/TLS configuration for secure cloud connectivity.
  • Managed GPS data retrieval and real-time data exchange between the dispenser and cloud servers.
  • Enhanced product reliability through thorough testing and system optimization.
  • Strengthened expertise in embedded firmware development and IoT product integration.

Embedded Systems Engineering Intern

December 2024 - June 2025

Paraqum Technologies (Pvt) Ltd

  • Developed embedded firmware for STM32 microcontrollers using STM32 HAL/LL frameworks.
  • Designed and debugged PCBs for GPS and audio processing applications.
  • Contributed to RF circuit and PCB design using Altium Designer.
  • Conducted system-level testing and validation using oscilloscopes and multimeters.
  • Collaborated in a fast-paced team to deliver hardware-focused solutions within tight deadlines.

Skills & Technologies

Electronic Circuit Design

  • LTspice
  • Keysight ADS
  • QUCS
  • Ansys Circuits

IC Design

  • Xschem
  • Klayout
  • Sky130 PDK
  • IHP PDK

Programming

  • C/C++
  • Python
  • MATLAB
  • Bash Scripting

EM Simulation

  • Ansys HFSS
  • openEMS(IC Inductor Design)

Antenna Design and Simulation

  • Ansys HFSS
  • Ansys Circuits
  • FEKO(Charactersitc Mode analysis)
  • Altium(Fabrication Files)

Analog/ Mixed / RF PCB Design

  • Altium
  • SIwave (Signal Intergrity)

Firmware Development

  • STM32(HAL/LL)
  • Arduino
  • ESp-IDF

HDL

  • System Verilog
  • VHDL

Projects

RFIC Design Competition Project

In Progress

Team project for an RFIC design competition that started in 2025, targeting tapeout in 2026. Currently focused on RF inductor design and simulations in HFSS for SKY130 PDK layer stackups, along with IC layout aspects. Details confidential due to competition regulations.

  • HFSS (Inductor Design)
  • Klayout
  • SKY130 PDK
  • RF Circuit Design
  • Team Project

GPS Spoofing Detection System

In Progress

Final Year Project: Developing a GPS spoofing detection system. Currently in PCB design phase (Altium Designer) and antenna fabrication. Utilizing custom RHCP patch antenna design. Project details confidential until completion.

  • Altium Designer
  • PCB Design
  • RHCP Antenna
  • RF Front-End
  • Final Year Project

UHF RFID Reader

Completed

Built a complete UHF RFID reader system operating at 915 MHz with custom antenna design and signal processing algorithms.

  • RF Design
  • Antenna
  • STM32
  • C++

IoT Home Security System

Completed

Developed an IoT-based home security system with motion detection, real-time alerts, and mobile app integration using ESP32.

  • ESP32
  • IoT
  • Firebase
  • Mobile App

Coax-Fed Patch Antenna

Completed

Designed and fabricated a coax-fed microstrip patch antenna for 2.4 GHz applications with impedance matching and radiation pattern optimization.

  • HFSS
  • RF Design
  • Altium
  • EM Simulation

Dual-Sense CP Antenna for GPS L1

In Progress - PCB Ordered, Awaiting Delivery

Two-layer slotted circular patch antenna with orthogonal slots for RHCP/LHCP operation at 1575.42 MHz. Sub-project for GPS Spoofing Detection system. HFSS simulations completed, PCB ordered from JLCPCB.

  • HFSS
  • Dual-Sense CP
  • PCB Fabrication
  • JLCPCB

Transformer Thermal Anomaly Detection

Completed

Web-based AI system for automated transformer thermal inspection developed for EN3350 competition. Features database management, AI-based hotspot detection, interactive annotation tools, and PDF maintenance record generation.

  • React
  • Flask
  • OpenCV
  • SQLite
  • Computer Vision

Portfolio Website Design

Completed

Designed and developed a modern, responsive portfolio website with glassmorphism UI, dark/light theme toggle, and smooth animations to showcase projects and skills.

  • HTML5
  • CSS3
  • JavaScript
  • Responsive Design

Smart Medibox

Completed

IoT-enabled smart medicine dispenser with scheduled reminders, environmental monitoring, and Node-RED dashboard. Designed for Embedded Systems module with Wokwi simulation.

  • ESP32
  • Wokwi
  • Node-RED
  • IoT

Guitar Headphone Amplifier

Completed

Designed and built a high-fidelity guitar headphone amplifier with low distortion and wide frequency response for personal practice.

  • Analog Design
  • LTspice
  • Audio
  • PCB

P2P SDR Communication

Completed

Implemented peer-to-peer communication system using Software Defined Radio with custom modulation schemes and error correction.

  • SDR
  • Python
  • DSP
  • GNU Radio

UART Implementation on FPGA

Completed

Implemented UART serial communication protocol on Intel FPGA using Verilog HDL with configurable baud rate and error detection.

  • FPGA
  • Verilog HDL
  • Quartus Prime
  • ModelSim

Certifications & Achievements

Introduction to FPGA Design for Embedded Systems

University of Colorado Boulder

Comprehensive introduction to FPGA design principles, hardware description languages, and embedded systems implementation

November 2025

Credential ID: 5789DQD5AEGM

Hardware Description Languages for FPGA Design

University of Colorado Boulder

Advanced course covering VHDL and Verilog for FPGA design, digital logic implementation, and hardware synthesis techniques

December 2025

Credential ID: KEGLHJEAACS

RF Filter Design Fundamentals using Keysight ADS - RAHRF472

Rahsoft - Udemy

a comprehensive course that delves into the fundamental principles of Lumped and RF Filter Design using the industry-standard Keysight Advanced Design System (ADS) software

October 2025 - November 2025

RF and Millimeter-Wave Circuit Design

Eindhoven University of Technology

Advanced certification in RF circuit design techniques and millimeter-wave applications

June 2024 - October 2024

Microwave Engineering and Antennas

Eindhoven University of Technology

Comprehensive course on microwave engineering principles and antenna design

June 2024 - April 2025

Academic Excellence

University of Moratuwa

CGPA 3.63/4.00 - Consistent academic performance throughout undergraduate studies

2021 - Present
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Leadership & Volunteering

Telecom Lab Coordinator

ExMo Engineering Exhibition - University of Moratuwa

Coordinated the Telecommunication Laboratory showcase at ExMo, the annual engineering exhibition attracting 50,000+ visitors. Organized guided tours of telecom labs, demonstrated laboratory equipment, and showcased student projects to school children, university students, and technology enthusiasts.

Extracurricular & Sports

Athletic achievements and team spirit throughout my academic journey

School Era - St. Joseph's College - Colombo 10

Squash

School Era

  • All Island Novices Champion - U15 Category
  • U19 Team Matches - 3rd Place
  • School Captain

Football

School Era

  • Member of U15 Team
  • Member of U17 Team

University Era - University of Moratuwa

Weightlifting

2021 - Present

  • Member of the University Weightlifting Team

Fitness & Gym

2021 - Present

  • Regular fitness training
  • Strength and conditioning

Life Beyond Academics

When I'm not designing circuits, here's what keeps me inspired

Gym & Fitness

Committed to physical and mental wellness through consistent training. Fitness fuels my focus and drives my productivity in all aspects of life.

Family & Friends

The incredible people who make life meaningful. Cherishing moments, creating memories, and celebrating the bonds that matter most.

Anime Enthusiast

A true anime fan at heart! From the epic ninja journey of Naruto to the psychological thriller Death Note, and countless other series. Anime fuels my imagination and creativity.

Hip Hop Dance

Bringing energy and rhythm to life through hip hop dance. It's about expression, freedom, and pushing creative boundaries beyond the lab.

Get In Touch

I'm currently open to new opportunities and interesting projects. Whether you have a question or just want to say hi, feel free to reach out!