Characterizing PCB Rogowski Coil Bandwidth with Vector Network Analyzer
Journal
2025 IEEE Industry Applications Society Annual Meeting (IAS)
Start Page
1-6
Date Issued
2025-06-15
Author(s)
Abstract
This paper presents a fast modeling method for characterizing the bandwidth of a PCB Rogowski coil using a Vector Network Analyzer (VNA). By measuring the reflection coefficient of the Rogowski coil with VNA, the stray inductance and capacitance can be extracted to model the coil’s frequency response. This approach overcomes the frequency limitations of impedance analyzers and the heavy computational effort required by electromagnetic simulation software. Experimental validation demonstrates a correlation between the calculated lumped model and the measured frequency response, which confirms the method’s accuracy. The proposed method provides a fast and reliable way to determine the Rogowski coil’s bandwidth, aiding in its application for isolated high-frequency current sensing.
SDGs
Publisher
IEEE
Type
conference paper