High-Resolution Time--Domain Site Measurements Using Ordinary EMC Antennas

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This presentation will focus on how Commercial off-the-shelf (COTS) EMC test antennas can be used in conjunction with a Vector Network Analyzer (VNA) to perform high-resolution propagation measurements in a variety of EMC radiated testing facilities like outdoor ranges, anechoic chambers, and semi-anechoic rooms. We will look at biconical, log-periodic, dual-ridged horn, and dipole antennas. Both experimental and numerically modeled results will be shown. This talk will be of interest to EMC engineers who want to better understand the scattering environment of their test facilities.


  Date and Time

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  • Date: 12 May 2023
  • Time: 12:30 AM UTC to 03:00 AM UTC
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  • Compliance Testing, LLC
  • 1724 S. Nevada Way
  • Mesa, Arizona
  • United States 85204
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  • Starts 12 April 2023 08:10 PM UTC
  • Ends 12 May 2023 12:30 AM UTC
  • No Admission Charge

  Speakers

Dr. Robert Johnk Dr. Robert Johnk

Topic:

High-Resolution Time--Domain Site Measurements Using Ordinary EMC Antennas

Biography:

Robert (Bob) Johnk (M’91 – SM’07) received his Ph.D. degree in Electrical Engineering at the University of Colorado in 1990, where he specialized in electromagnetics and antennas. Bob is currently a research engineer at the Institute for Telecommunication Sciences (NTIA/ITS) where he is engaged in advancing the state of the art in radio-channel propagation measurements/analysis and mentoring new engineers in the art of measurement science. During the development of the FirstNet National Public Safety Radio System, Bob conducted research on in-building wireless propagation and methods for improving in-building public safety communications. Prior to joining NTIA/ITS in 2007, he worked at the National Institute of Standards and Technology (NIST) in Boulder, Colorado for 17 years, where he was the leader of the time-domain fields project. Bob has received best paper awards from the IEEE EMC Society, NTIA, and NIST. In 2011, Bob received the IEEE EMC Society’s Technical Achievement Award for his work "in the development of free-space time-domain measurement techniques". Bob has also received a U.S. Department of Commerce Silver Medal award for his work in Public Safety communications. Bob is a Life Senior member of the IEEE and a member of both Eta Kappa Nu and Tau Beta Pi. 




Agenda

5:30 PM: Networking, Dinner and Drinks (food and beverages provided)

6:30 PM: Presentation