Microwave Seminar on Leaky Wave Antennas

Speaker: Dr Lei Wang (ISSS Assistant Professor)
Time: 2pm to 3pm, Thursday, 20 May, 2021.
Venue: online (Please contact Dr. Yuan Ding for access)

Title: Wideband Leaky-Wave Antennas and Arrays for mmW Point-to-Point Communication

New communications systems require high-speed data transfer and need high frequency, wideband, and directive antennas. Leaky-wave antennas are a desirable type of antennas for millimetre (mmW) and submillimeter waves, since they can produce a high directive radiation with a single feeding. The latter is an enormous advantage to reducing the cost and losses at high frequency. Despite these advantages, their dispersive nature inherently produces a beam squint effect in their radiation patterns. Here, we propose the use of a lens that compensates for the dispersion of the leaky wave, making the overall antenna broadband. During this talk, several demonstrations of this concept will be presented in different implementations like the substrate integrated waveguide and groove gap waveguide technologies.

Short bio:
Dr Lei Wang received the Ph.D. degree in electromagnetic field and microwave technology from Southeast University, Nanjing, China in March 2015. From September 2014 to September 2016, he was a Research Fellow and Postdoc in the Laboratory of Electromagnetics and Antennas, Swiss Federal Institute of Technology (EPFL) in Lausanne, Switzerland. From October 2016 to November 2017, he was a Postdoc Research Fellow in Electromagnetic Engineering Laboratory of KTH Royal Institute of Technology in Stockholm, Sweden. From November 2017 to February 2020, he was an Alexander von Humboldt Fellow in the Institute of Electromagnetic Theory of Hamburg University of Technology (TUHH) in Hamburg, Germany. From March 2020 to present, he is an assistant professor in the Institute of Sensors, Signals & Systems of Heriot-Watt University in Edinburgh, UK.

Dr Lei Wang – Microwaves and Antenna Engineering Group (hw.ac.uk)