Dr. Carolina Mateo-Segura , Marie-Curie Fellow, attended the 38th Antenna Workshop organised by the Antenna and Sub-Millimetre Wave Section, from the Directorate of Technology, Engineering and Quality (D/TEC-EFA) of the European Space Agency (ESA) with the support of the Application Directorates of ESA. The workshop was held from the 3rd to the 6th of October 2017 at the European Space Research and Technology Centre (ESTEC), Noordwijk, The Netherlands. Dr. Mateo-Segura presented gave an oral presentation on novel circularly polarised lens antennas based on transformation electromagnetics and presented 2 more papers in the shape of posters about microwave dielectric waveplates and bifocal lenses for multibeam antenna applications.