Analysis of multiple-folded spherical helical antenna using the Galerkin-Bubnov scheme of the Boundary Element method

This paper deals with the numerical modeling of electrically short antenna designed as multiple-folded spherical helical antenna (SHA). Such antennas have convenient properties which make them suitable for use in systems such as wireless power transfer. The geometry of SHA is rather complex due to its high level curvature. The problem is formulated in terms of the set of Pocklington integro-differential equations for curved wires which is solved via the Galerkin-Bubnov scheme of the Boundary Element method (GB-IBEM). Some computational examples are given in the paper. The obtained numerical results are compared to some of the results obtained from available commercial software. The agreement is found to be satisfactory.