This paper discusses the human body modeling for the design of mobile terminal antennas at 400 MHz band, In particular, the effect of the human body inhomogeneity and shape on the radiation characteristics of the terminal antenna is investigated at the 400 MHz band, Then, the effect of the human arm on the antenna characteristics is discussed. For this purpose, the radiation characteristics of a dipole antenna in the presence of an anatomically-based human body model and those for a homogeneous model are compared, Next, those for a homogeneous realistic model and shape-simplified models are compared, The numerical and experimental investigation reveals that the effect of inhomogeneity and shape of the human body on the antenna characteristics is not large from the viewpoint of antenna designs, On the other hand, the effect of human arm on them is larger than that due to the other factors.
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