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OTA Test

Engineers are faced with a serious test challenge while they developing a new 5G millimeter-wave encapsulated antenna (AIP) device: how to characterize the beamforming performance of the device's port (OTA). Due to the lack of traditional connectorized test ports for evaluating device performance, engineers need to carefully control the RF environment in the anechoic chamber and carefully configure and perform 3D space scans. Therefore, performing such a spatial scan is time-consuming and costly.

Application

COMMUNICATION
RADAR
MEDICINE

Descriptions

• The OTA test time was reduced from hours to minutes by continuously scanning the 3D space, and the DUT locator was tightly synchronized with the RF generation and analysis engine by using the PXI platform.
• Reliable OTA measurements are obtained with the help of noiseless RF silencing chambers and quiet zones analyzed for appropriate characteristics.
• The AiP DUT's high-bandwidth beamforming performance was verified with a millimeter wave vector signal transceiver that supports all 3GPP channel bandwidths and 5G-compliant waveforms.
• Using NI's millimeter-wave OTA verification test software, you can easily configure a variety of spatial scans to perform characteristic analysis of DUT antenna patterns while quickly generating, viewing, storing, or distributing detailed parameter results.

Advantages

• Reduce the millimeter wave OTA test time from hours to minutes
• Provide detailed measurement results and curves to engineers quickly
• Reduce OTA measurement uncertainty through appropriate system calibration
• Integrated TX/RX workbench without external switching
• Hardware accelerated real-time DUT locator control enables sampling of dozens of points (azimuth and pitch) per second
• High bandwidth millimeter wave VST can test true 5G waveform
• Provide a cost-effective and highly isolated microwave analogue chamber that minimizes signal interference
• Millimeter wave OTA verification test software enables interactive application and rapid automation