Characterizing device behavior in the presence of various signals
Coexistence testing for medical devices requires understanding radio protocols, the environment in which the device may operate, and the techniques to improve coexistence and its challenges. Implementing one or more of the coexistence techniques is essential to delivering reliable device and network performance. Testing these implementations is critical to properly characterizing the device behavior in the presence of other devices, including those using other radio protocols. An optimal coexistence test plan requires the test engineer to characterize the expected RF environment, choose the test signals and then compile the functional wireless performance (FWP) requirements.
The test setup consists of the device under test (DUT) connected to another device. However, the test format depends on whether there is an external antenna connection on the DUT, whether the device will operate in a multiple-input, multiple-output (MIMO) network, or if it features directional antennas. Each test setup consists of similar components: a DUT, another device that connects or pairs with the DUT, a competing network device, and a spectrum analyzer.
Wireless coexistence test solution
Wireless coexistence testing for medical devices requires characterizing their behavior in the presence of intended and interfering radio signals. The Keysight wireless coexistence test solution combines a signal generator and a signal analyzer with Keysight PathWave software, enabling you to evaluate the functional wireless performance of connected devices while identifying and mitigating interference issues.
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Watch this demonstration of the interference between wireless protocols common on the 2.4 GHz ISM band. With so many devices on the air using incompatible radio protocols, interference is inevitable, but using Coexistence test you can evaluate the wireless performance of any product trying to operate in the presence of dissimilar radio signals. The video shows a Bluetooth device (MP3 player) playing music to a wireless speaker, and what happens when a Wi-Fi signal begins operation on the same 2.4 GHz radio band. Using Wireless Coexistence testing based on ANSI Standard C63.27, devices can be evaluated, performance measurements can be made (and evaluate effects of product changes), and recommendations can be generated for device placements and recommended operating environments. These tests are expected for wireless Healthcare devices seeking FDA approval, and are also recommended for any device using one of the many wireless protocols available today, including Bluetooth, Zigbee, Wi-Fi, Thread, WiHART, etc. For more information please visit www.keysight.com/find/iot This modal can be closed by pressing the Escape key or activating the close button.
Explore products in our wireless coexistence test solution
89601200C PathWave Vector Signal Analysis Base Platform - Advanced Tier
How to Test Wireless Coexistence for Medical Devices
N5182B Gerador Vetorial de Sinais de RF da Série X MXG, 9 kHz a 6 GHz
N5182B MXG X-Series RF vector high performance signal generators are fine-tuned to be your “golden transmitter” in R&D with 9 kHz to 6 GHz frequency coverage. Simulate real-world signals with real-time capabilities with Signal Studio software.