Completed Spring 2020

Highly Sensitive Microwave Sensor Based on Stepped Impedance Structures

Bachelor's Thesis in Electronic Engineering focused on designing and validating a non-resonant radio frequency sensor implemented in microstrip technology using stepped impedance techniques for dielectric constant measurement.

Duration

Spring 2020

Team Size

1 members

Role

Researcher & Developer

Technologies

MicrostripStepped ImpedanceKeysight ADSVNARF DesignSensor Optimization
📄 Publication

Overview

Bachelor's Thesis project in Electronic Engineering focusing on the design and validation of highly sensitive microwave sensors using stepped impedance structures in microstrip technology.

Research concentrated on optimizing sensor sensitivity for dielectric constant measurement applications through advanced impedance engineering techniques.

Project involved comprehensive simulation using Keysight ADS software and experimental validation using vector network analyzer measurements in laboratory environment.

Specifications

Research Focus

Degree

Bachelor's in Electronic Engineering

Technology

Microstrip Implementation

Technique

Stepped Impedance Structures

Application

Dielectric Constant Measurement

Objective

Sensitivity Optimization

Validation

Experimental Testing

Technical Tools

Simulation

Keysight Advanced Design System

Measurement

Vector Network Analyzer

Design

Microstrip line optimization

Analysis

S-parameter characterization

Fabrication

PCB prototyping

Testing

Laboratory validation

Development Process

1

Literature Review & Theory

Conducted comprehensive literature review of stepped impedance sensors and established theoretical foundation for sensitivity optimization.

2

Design & Simulation

Designed stepped impedance sensor structures using Keysight ADS, optimizing geometry parameters for maximum sensitivity to dielectric changes.

3

Fabrication & Assembly

Fabricated sensor prototypes using PCB manufacturing processes and assembled complete measurement setup for testing.

4

Experimental Validation

Conducted comprehensive measurements using VNA, validated simulation results, and characterized sensor performance with various dielectric materials.

Results & Impact

Achievements

  • ✓ Successfully completed Bachelor's thesis project
  • ✓ Achieved enhanced sensor sensitivity through impedance optimization
  • ✓ Validated theoretical models with experimental results
  • ✓ Demonstrated practical application for material characterization
  • ✓ Established foundation for future research work
  • ✓ Published results in peer-reviewed journal

Applications

  • ● Dielectric constant measurement
  • ● Material characterization and analysis
  • ● Quality control in manufacturing
  • ● Non-destructive testing applications
  • ● Research and development tools
  • ● Industrial sensing solutions
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