Dominant-mode Leakage on Stripline and Microstrip Transmission-line Structures at Millimeter Wave (mmW) Frequencies: Issues & Solutions


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Leaky modes have been found on a variety of waveguiding structures. For transmission-line applications, their presence is undesirable since they carry energy away from the structure, thus causing additional loss on the line and interference between circuit elements. Of particular interest for planar transmission-line structures are dominant leaky modes. The term "dominant" implies that the strip current is similar to that of the conventional transverse-electromagnetic (TEM) mode. In this seminar, the dominant leaky-modes for common stripline and microstrip-line structures at millimeter wave (mmW) frequencies: Issues and Solutions will be presented. System analysis, antenna element/array designs (including Leaky Wave Antennas: LWAs), and radiation safety for mmW communication systems, such as 5G for WBAN (Wireless Body Area Network), wireless gigabit Ethernet (60 GHz, 80GHz) for indoor/outdoor (point-to-point), automotive radar (77 GHz) and imaging (94 GHz) systems will also be discussed.

  Date and Time




  • 1000 Gramsie Rd
  • Shoreview, Minnesota
  • United States 55126
  • Building: Best Western Plus
  • Room Number: Hamline/Concordia

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  • Co-sponsored by Global Wireless Technology


Dr. David Nghiem of Global Wireless Technology


Dr. David Nghiem


Dr. David Nghiem is the Founding CEO & Chief Scientist of Global Wireless Technology (GWT),Inc. Dr. Nghiem has spent many years in the telecommunication and medical industries, including HarrisCorporation, Qualcomm, USA Wireless and Medtronic, and has become an industry leader in medical wireless telemetry systems. He was an Assistant Dean of the CullenCollege of Engineering, and a Director of the Telecommunication Center at the University of Houston. Dr. Nghiem is also a senior IEEE member. He was the Chairman of the IEEE-MTT-S Twin Cities chapter. In 2016, Twin Cities IEEE Section has honored Dr. Nghiem’s outstanding engineering career with the IEEE Outstanding Engineer Award. Dr. David Nghiem discovered the dominant leaky modes for a variety of common planar transmission-line structures through his Ph.D. research program 25 years ago.



11:30 AM –12:00 PM Social/Lunch

12:00 PM –1:00 PM Presentation

FREE LUNCH AND DOOR PRIZE.  Register via email to