In the never-ending quest for more bandwidth, the wireless industry is moving towards technologies that will drastically alter the relationship between the radio and its antennas. Existing over-the-air (OTA) test techniques were developed to address situations where interactions between the radio, antenna, and their embedded platform prevent their performance from being evaluated independently. However, as we move towards fifth generation (5G) wireless networks, the use of advanced adaptive antenna system (AAS) techniques including beam forming, as well as the expected move to millimeter wave (mmWave) frequencies will have an unprecedented impact on existing RF testing of wireless devices. Since most of these techniques rely on active antenna elements, the overall radio performance cannot be dissociated from the antenna performance. Thus, while OTA testing will face its own challenges in adapting to new 5G radios and mmWave devices, test techniques that traditionally relied on direct cabled connector access to the radio will now face a complete paradigm shift in the way testing must be performed. Common conformance and production line tests that are normally performed with a direct cable connection become impractical if not impossible when there are hundreds of active elements to be tested. Even electromagnetic compatibility (EMC) testing is impacted by the ever present active radio signal. This webinar will provide a background introduction to the implications of the 5G new radio and touch on each of these topics illustrating their impact and offering potential solutions to some of the problems outlined.
Dr. Michael D. Foegelle is the Director of Technology Development at ETS-Lindgren in Cedar Park, Texas, and has more than 25 years of test and measurement experience in RF and wireless. He received his Ph.D. in physics from the University of Texas at Austin. Dr. Foegelle has been actively involved in standards development with the CTIA Certification Program Working Group, 3GPP, Wi-Fi Alliance, IEEE 802.11, WiMAX Forum, and ANSI ASC C63 on electromagnetic compatibility. He has served as chair or vice-chair of various working groups in those organizations and currently co-chairs the joint CTIA/Wi-Fi Alliance Converged Wireless Group and the CTIA OTA Measurement Uncertainty Subgroup. He has authored or co-authored numerous papers in the areas of Electromagnetics, EMC, Wireless Performance Testing, and Condensed Matter Physics, holds a number of patents on wireless and electromagnetic test methods and equipment, and is dedicated to advancing the state of the art in radiated RF testing of emerging wireless technologies..
MODERATOR: Douglas McCormick IEEE Spectrum “Tech Talk” contributor
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