This article presents gain enhancement methodology for a dual-ring slot antenna using a frequency selective surface (FSS) as reflector. The FSS structure is formed with liquid metal placed inside the microfluidic channels created on the surface of the polydimethylsiloxane. Non-toxic liquid metal galinstain has been used to ensure biocompatibility. The FSS structure is placed below the ring slot antenna to reflect the back radiation, which in turn enhances the antenna directivity. Subsequently, the antenna gain has been increased as well. A fabricated prototype of the antenna-FSS system, operating at 2.45 GHz, has been analysed both inside human tissue mimicking fluid and pork slab to validate the simulation results. The inclusion of the liquid metal-based reflector increases antenna gain by almost 4 dB as well as ensures required biocompatibility and flexibility. Also the specific absorption rate of the antenna is observed to be reduced.
On the 22nd and 23rd of October 2019, SINTEC project partecipated at the European Commission workshop on “Smart Bioelectronic and Wearable Systems” at the DG Connect in Brussels (Belgium). The workshop presented breakthroughs and innovations in smart bioelectronics and flexible & wearable systems – two important areas of the Key Digital Technologies. Market leaders, innovators, researchers, professional and user organisations discussed how Europe can keep its global leadership in these areas. The high level participants discussed and provided recommendations on the technology and market challenges and opportunities, and, how to maximise the societal and economic benefits of these technologies in addressing health, ageing, agri-food, security, environment & climate change. Robin Augustin from Uppsala University and Isella Vicini by Warrant Hub participated at the conference representing SINTEC project; in particular, Robin Augustin had a speech about the project inside the session called ” Wearable systems in H2020: Technology Readiness and Innovation potential”. This session included project pitches with a focus on technology readiness and innovation potential. The format was a 1-2 minutes pitch by each project, as introduced by EC and with a single slide on screen. MORE INFO and PICTURES: https://www.sintec-project.eu/smart-bioelectronic-and-wearable-systems/