Why Multi-Interference Testing Matters for Modern Medical Devices
应用文章
Modern medical devices increasingly depend on wireless connectivity to enable critical functions such as remote patient monitoring, telesurgery, and real-time data exchange. However, these devices often operate in RF-congested environments like hospitals, where multiple wireless systems, including Wi-Fi, Bluetooth®, and LTE, compete for limited spectrum. This congestion introduces complex interference effects that can degrade performance, disrupt communication, and pose serious risks to patient safety.
To address these challenges, multi-interference testing has become essential for validating device reliability under realistic conditions. Unlike traditional EMC testing, wireless coexistence testing evaluates a device’s ability to maintain Functional Wireless Performance (FWP) when exposed to multiple concurrent interferers. The ANSI C63.27 standard provides a structured framework for such assessments, including risk-based evaluation tiers and key performance indicators such as throughput, latency, and packet error rate.
This application note outlines the importance of multi-interference testing and demonstrates how Keysight’s Wireless Coexistence Test Solution enables comprehensive evaluation. The solution supports up to eight simultaneous interference waveforms, automated test execution, and real-time spectrum analysis, ensuring robust performance validation across all risk tiers. By adopting these practices, manufacturers can optimize design, meet regulatory expectations, and enhance patient safety in increasingly connected healthcare environments.