Path Loss Model as a Function of Antenna Height for 300 GHz Chip-to-Chip Communications

This paper presents the path loss model of Terahertz (THz) wireless channel inside a desktop size metal enclosure as a function of antenna height. Measurements for line-of-sight (LoS) propagation inside the metal box show that path loss varies with respect to the transceiver's height from the bottom wall, and for some heights, the path loss is lower than the free space value. Analysis based on the cavity modes shows that the first eight TE modes dominate the resonating modes inside the box. Also, the path loss analysis indicates that the resonating modes combined with the reflections inside the box are responsible for the strong ripples in the path loss curve.