Evaluation of Aerosol Jet Printing of Frequency Selective Surface on Glass for Building and RF Applications

The use of Aerosol Jet Printing technology to fabricate frequency selective surfaces (FSS) on glass for secure WLAN building applications is presented. Aerosol Jet Printing is combined with nano particle silver inks to produce the FSS array. A square loop design in a square lattice is employed in this demonstrator. The structure operates around the 2.5 GHz frequency band commonly used in wireless communication systems and covers a wide range frequencies. A single layer array design is studied. Aerosol Jet printing is able to produce fine tracks needed for the design and provide sufficient conductivity for the filtering performance. The aim is to demonstrate a potential solution for the development of FSS for building and radio frequency (RF) shielding applications. In particular, windows can contain these printed RF structures and enhanced their RF capabilities. CST Microwave Studio was used for the simulation of the FSS. Simulations compare well with measurements.