Analysis of linear antenna near dielectric object by CBFM

The Numerical Analysis of an Antenna near a Dielectric Object Using the Higher-Order Characteristic Basis Function Method Combined with a Volume Integral Equation

“…It has been shown that the minimum CPU time of the CBFM is O(N 7/3 ) when the number of blocks M ≈ 0.9N 1/3 [4]. In our research, the CBFM has been applied to the numerical analyses of small antennas in the vicinity of dielectric objects [5], [6]. The CPU time can be saved for the numerical analyses of small antennas in the vicinity of dielectric objects when M = 0.9N 1/3 and all antenna segments are allocated to the same block.…”

“…It is difficult to save the CPU time of the CBFM without allocating the antenna segments to different blocks when the size of the antenna in the vicinity of a dielectric object is more than several wavelengths. Moreover, it has been shown that the accuracy of the final results obtained using the CBFM becomes extremely poor when the antenna segments are allocated to different blocks [5], [6]. Therefore, the CBFM should be improved if it is used to analyze medium or large-sized antennas in the vicinity of dielectric objects.…”

Numerical analysis of antenna near dielectric object by using CBFM with arbitrary block division

“…On the other hand, the accuracy of the CBFM greatly depends on block division [8]. Especially, it has been shown that the accuracy of the CBFM becomes poor when the block division is arbitrary and antenna segments are allocated to different blocks [9], [10]. …”