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Multibeam Antennas and Beamforming Networks

Giovanni TosoGiovanni Toso

European Space Agency, ESA ESTEC, The Netherlands

Giovanni Toso (S’93, M’00, SM’07) received the Laurea Degree (summa cum laude) and the Ph.D. in Electrical Engineering from the University of Florence, Florence, Italy, in 1992 and 1995, respectively. In 1996 he was visiting scientist at the Laboratoire d'Optique Electromagnétique, University of Aix-Marseille III, France. From 1997 to 1999 he was a Post Doctoral student at the University of Florence. In 1999 he was a visiting scientist at the University of California, Los Angeles (UCLA). In the same year he received a scholarship from Alenia Spazio (Rome, Italy) and he has been appointed researcher in a Radioastronomy Observatory of the Italian National Council of Researches (CNR). Since 2000 he is with the Antenna and Submillimeter Section of the European Space and Technology Centre of the European Space Agency, ESA ESTEC, Noordwijk, The Netherlands. He has been initiating and contributing to several R&D activities on satellite antennas based on arrays, reflectarrays, constrained lenses and reflectors. G. Toso has co-authored more than 300 technical papers published in peer reviewed journals and international conferences, and more than 15 international patents. G. Toso has been coauthoring the best paper at the 30th ESA Antenna Workshop and the most innovative paper at the 30th and 36th ESA Antenna Workshops. In 2009 he has been coeditor of the Special Issue on Active Antennas for Satellite Applications in the International Journal of Antennas and Propagation. G. Toso is a co-guest editor together with Dr. R. Mailloux of the Special Issue on “Innovative phased array antennas based on non-regular lattices and overlapped subarrays” published on the IEEE Transactions on Antennas and Propagation in 2014. G. Toso has served as Associate Editor of the IEEE Transactions on Antennas and Propagation.


Piero AngelettiPiero Angeletti

European Space Agency, ESA ESTEC, The Netherlands

Piero Angeletti (IEEE M’07, SM’13) received the Laurea degree in Electronics Engineering from the University of Ancona (Italy) in 1996, and the PhD in Electromagnetism from the University of Rome “La Sapienza” (Italy) in 2010. His 20 years experience in RF Systems engineering and technical management encompasses conceptual/architectural design, trade-offs, detailed design, production, integration and testing of satellite payloads and active antenna systems for commercial/military telecommunications and navigation (spanning all the operating bands and set of applications) as well as for multifunction RADARs and electronic counter measure systems. Dr. Angeletti is currently member of the technical staff of the European Space Research and Technology Center (ESTEC) of the European Space Agency, in Noordwijk (The Netherlands), and Head of the Radio Frequency Payloads and Technology Division which is responsible for payloads, instruments and technologies for space & ground applications and associated laboratory facilities. His research interests encompass multibeam antennas, flexible satellite payloads, RF front-ends and on-board digital processors. Dr. Angeletti authored/co-authored over 200 technical reports, book chapters and papers published in peer reviewed professional journals and international conferences’ proceedings.



Multibeam Antennas represent the baseline solution for several applications requiring high performance in terms of gain, reconfigurability (in power and pattern), cost, throughput, flexibility, accommodation etc. MBAs have been proposed since long time for Space Applications and Radar Systems. Today they are becoming a reality as well for several emerging applications including Mobile and 5G Communications. The course has been previously proposed during EUCAP, IEEE AP-S / IMS and EuMW conferences with excellent participation and interest. The course content is regularly updated by the two co-authors who are involved since twenty years in this field.


Course outline

The objective of this course consists in presenting the state of the art and the on-going developments in Multi-Beam Antennas (MBAs) and Beam-Forming Networks (BFNs). MBAs find application in several fields including communications, remote sensing (e.g. radars, radiometers, etc.), electronic surveillance and defense systems, science (e.g. multibeam radio telescopes), RF navigation systems. MBAs are also considered the key enabling technology for the fifth-generation (5G) of wireless communications. The BFN plays an essential role in any antenna system relaying on a set of radiating elements to generate a beam. The course will cover both theoretical and practical aspects for the following topics:

  • Overview of Multibeam Antennas and system requirements
    • RADARs,
    • Wireless Communications and 5G;
    • Satellite Communication Systems.
  • Multibeam Antennas
    • Linear and Planar Direct Radiating Arrays (based on Periodic or Aperiodic lattices)
    • Reflector-based architectures (Single-Feed-per-Beam, Multiple-Feed-per-Beam)
    • Lens-based architectures (free space and constrained)
  • Analog Beamforming Networks
  • Digital Beamforming Networks
  • Overview of some Operational Multibeam Antennas/BFNs
  • On-going European Developments and Current Design and Technological Challenges
    • Corporate divider/combiners;
    • Blass and Nolen matrices;
    • Butler matrices.
    • MBAs for Spaceborne Narrowband and Broadband Satellite Communication Systems
    • MBAs for Wireless Communications and 5G
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Important Deadlines
12 February 2018
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European Microwave Association

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