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In recent years, the metamaterials and its applications to antenna and other fields have been widely investigated theoretically and experimentally. The metamaterials are usually realized by some periodic structures composed of a conductor and/or dielectric/magnetic materials. In order to design the characteristics of metamaterial properly, some theoretical and/or numerical techniques are required...
This paper defines an energy-based pulse reflection coefficient and a corresponding pulse matching ratio for the characterization of ultra-wide band antennas. As opposed to the usual frequency-domain reflection coefficient or VSWR, the proposed descriptors provide a relevant view on the amount of energy that is sent back to the transmitter. In order to evaluate the pulse reflection coefficient time-domain...
In this paper, we proposed the RC-CIP method to analyze the dispersive materials. The results shows that the good stability for wide frequency range. However, the calculation accuracy was not investigated as rectangular pulse response in time domain, the reason was that the exact solution of rectangular pulse was difficult to obtain. Furthermore, in this paper, we calculated homogenous dispersive...
In this paper a hybrid method for modelling on-body propagation channel has been presented. The original problem is split into two sub-domains: the antenna is analyzed with the commercial software CST, while the human body is handled with the FDTD; the equivalence principle is used as interface between the two sub-domains. The method has been applied to analyze a typical on-body scenario at the unlicensed...
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