Effects of Modes on THz Wireless Channels Inside Metal Enclosures

This paper studies the effects of the geometrical parameters of the rectangular metallic enclosure on the THz wireless link. Three rectangular conducting cavities of different sizes are fabricated and tested to explore the feasibility for THz wireless link. The dimensions of the boxes are selected to represent the physical sizes of the computer desktops. Measurements show that the mode interference and hence multipath depend upon the transverse dimensions of the cavity. Furthermore, for the same excitation, it is shown that due to the large value of the fractional frequency changes the smaller cavity has less path loss variation and reduced multipath.