The antenna's performance is improved by using a very small and thin metasurface that can be mounted on a smartphone. Inserting this metasurface directly under the antenna and smartphone case improves the beam coverage of the smartphone in the 5G/6G band.

This metasurface confirms that high gain according to the polarization of the incident waves on the metasurface, supporting polarization-dependent beam-shaping capability as a function of the polarization of incident waves.

Various circuits have been designed, such as power amplifiers, phase shifters, and oscillators for radio frequency (RF) systems of mobile communication. Also, we intend to implement a reception signal amplification function pointed out as a limitation of the existing RIS by combining a high-frequency CMOS circuit with RIS.

The objective of this area is to develop advanced and integrated electromagnetic system software and we have carried out the development of ‘Ray-Tracing’ part of this software. Ray-Tracing simulation is widely adopted to model indoor and outdoor radio channels with decreasing time consumption significantly compared to campaigns.