Tutorials
Connected Slot Antennas for Wideband Wide-Scan Phased Arrays
Ultrawideband low-profile arrays are popular solutions for multifunctional antenna systems. Although being traditionally employed primarily for defense applications, recently broadband arrays are gaining interest also for commercial terrestrial and satellite communication. The talk will focus on a specific concept for wideband wide-scan arrays based on connected slots with artificial dielectric superstrates. A number of analytical models to evaluate the unit cell performance are described and their application to practical wideband array designs is discussed. Design examples reaching up to 10:1 bandwidth are presented, including experimental results from prototypes.
Daniele Cavallo received the M.Sc. degree (summa cum laude) in telecommunication engineering from the University of Sannio, Benevento, Italy, in 2007, and the Ph.D. degree (cum laude) in electromagnetics from Eindhoven University of Technology, Eindhoven, The Netherlands, in 2011.
From 2007 to 2011, he was with the Antenna Group, Netherlands Organization for Applied Scientific Research, The Hague, Netherlands. From 2012 to 2015, he was a Postdoc at Delft University of Technology (TUDelft), Delft, Netherlands. In 2015, he joined Chalmers University of Technology in Gothenburg, Sweden, as a visiting researcher. He is currently an Associate Professor in the Terahertz Sensing Group at TUDelft. He has authored or coauthored about 200 publications in journals and conference proceedings. His research interests include wideband antenna arrays, analytical and numerical methods for antenna characterization, and mmWave integrated antennas.
Dr. Cavallo is a Senior Member of IEEE, co-coordinator of the working group “Active Array Antennas” of the European Association on Antennas and Propagation. He was a recipient of the Best Innovative Paper Prize at the ESA Antenna Workshop in 2008, the Best Paper Award in Electromagnetics and Antenna Theory at the European Conference on Antennas and Propagation (EuCAP) in 2017, and the Best Antenna Theory Paper at EuCAP 2024. He served as an associate editor of the IEEE Transactions on Antennas and Propagation from 2016 to 2023.