Tunable feeding point THz antenna with butterfly type slot based on ceramic material substrate

A new type of tunable feeding point Terahertz (THz) slot antenna with a butterfly type metallic body structure on ceramic substrate is proposed in this paper. Slots are produced by symmetrically cutting a copper plate. Implementation of the based slot body offers a better directivity and radiation efficiency. Full-wave simulation results showed that the THz band slot antenna works at 0.224THz with a -10dB bandwidth of 11.60GHz and the maximum directivity is 11.8dBi. It is very flexible and convenient to adjust the center frequency of antenna by properly adjusting the feed point position. These interesting THz slot antenna was suggested a promising application in various fields such as biosensors, artificial vision restoration system and THz communication system.