A Hybrid Measurement Setup for Evaluating the Shielding Effectiveness of Small Enclosures in a Reverberation Chamber from 200 MHz to 10 GHz

Shielding effectiveness is a key parameter in evaluating the ability of enclosures to mitigate electromagnetic interference in electronic systems. While existing standards define multiple shielding effectiveness characterization techniques, differences in practical setups and target frequency ranges often lead to complexity and measurement inconsistencies. This paper proposes a hybrid shielding effectiveness measurement setup for small enclosures in a reverberation chamber, covering the 200 MHz to 10 GHz range with minimal modifications. A key feature of this setup is its ability to evaluate the shielding effectiveness of small enclosures even below the chamber’s lowest usable frequency, extending the applicability of RC-based measurements. The effectiveness of this approach is validated experimentally by comparing the absorbing clamp method with conventional techniques in the 1–3 GHz range. To our knowledge, this is the first study to integrate both conductive and radiative measurement approaches for shielding effectiveness characterization of small enclosures while also verifying their consistency. The proposed setup enhances the practicality and accuracy of shielding effectiveness characterization, making it more accessible for general electromagnetic compatibility laboratories and industry applications.