INFLUENCE OF A WIRE SCATTERER ON A TRANSMITTING WIRE ANTENNA

The antenna performance may be essentially influenced via electromagnetic (EM) coupling between the antenna and its surrounding objects. It is therefore of high importance to quantify these EM coupling effects in terms of observable parameters characterizing the antenna itself. This chapter analyzes the impact of a thin‐wire perfect electric conductor scatterer on the impulsive electric‐current response of a thin‐wire antenna oriented parallel to the scatterer. It uses of the reciprocity theorem of the time‐convolution type to interrelate two EM field states differing from each other in the presence of a wire scatterer. The wire antenna is in both scenarios excited via one and the same voltage pulse applied in a narrow gap in the antenna body. For the sake of simplicity, both the antenna and the scatterer are placed in the unbounded, homogeneous, loss‐free, and isotropic embedding.