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Alibakhshikenari, Mohammad, Virdee, Bal Singh, See, Chan, Fishlock, Sam Jeffery, Soin, Navneet, McLaughlin, James, Abd-Alhameed, Raed and Limiti, Ernesto (2019) Terahertz on-chip antenna based on metasurface and SIW with stacked layers of resonators on GaAs substrate. In: 8th Asia-Pacific Conference on Antennas and Propagation, 4 - 7 August 2019, Incheon, Korea.
This paper presents a 100μm GaAs-based 0.45-0.50 THz on-chip antenna based on metasurface and substrate integrated waveguide (SIW) technologies to realize a high-performance antenna. The antenna design consists of 2×4 array of circular slot resonators embedded in rectangular ground-plane segments in a horizontal arrangement. The ground-plane segments are separated from each other by a narrow channel to create a coplanar waveguide which is used to excite the structure. This antenna structure, which is constructed on GaAs substrate, reduces substrate loss and surface waves. In addition, the metasurface essentially enlarges the effective aperture area of the antenna to enhance the gain and radiation efficiency of the antenna. The dimensions of the metasurface on-chip antenna is 0.8×0.8×0.13 mm3. The antenna exhibits an average gain and efficiency of 6.9dBi and 61.82%, respectively, which makes it a promising candidate for packaging in terahertz components.
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