In this paper, we investigate changes in received power intensity and R.M.S. delay spread due to antenna beam width misalignment when using a terahertz band directional antenna in an inter-rack communication environment within a data center. Because the terahertz band has a relatively short radio distance due to the frequency characteristics, directional antennas are expected to be mainly utilized. However, when using a directional antenna with a narrow antenna beamwidth, a situation where the beamwidths of the transmitting antenna and the receiving antenna do not overlap may occur, resulting in antenna beamwidth misalignment. In particular, in an interrack communication environment within a data center, we assume that the transmitting and receiving antennas are horizontally or vertically misaligned with the antenna beam widths, and we confirm the resulting effect in propagation characteristics.
KSP Keywords
Antenna Beamwidth, Beam misalignment, Communication Environment, Data center, Delay spread, Directional Antenna, Frequency characteristics, GHz band, Propagation characteristics, Received Power, Receiving antennas
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