Antenna on Chip (AoC) Design Using Metasurface and SIW Technologies for THz Wireless Applications

This paper presents the design of a high-performance 0.45–0.50 THz antenna on chip (AoC) for fabrication 100-micron GaAs substrate. The is based metasurface and substrate-integrated waveguide (SIW) technologies. It constituted from seven stacked layers consisting copper patch–silicon oxide–feedline–silicon oxide–aluminium–GaAs–copper ground. top layer consists 2 × 4 array rectangular metallic patches with row subwavelength circular slots to transform into metasurface. essentially enlarges effective aperture area antenna. excited using coplanar feedline that sandwiched between two silicon oxide below patch layer. proposed structure reduces substrate loss surface waves. AoC has dimensions 0.8 0.13 mm3. results show greatly enhances antenna’s gain radiation efficiency, this achieved without compromising its physical size. exhibits an average efficiency 6.5 dBi 65%, respectively, which makes it promising candidate emerging terahertz applications.