Polarization current model method applied to three dimensional analysis of antennas including dielectric

This paper described the application of the polarization current model method (PCMM) to the three dimensional analysis of antennas consisting of dielectric materials. A dielectric loaded slot antenna is analyzed, and the numerical results of the radiation patterns are compared with those by the Agilent-HFSS (High Frequency Structure Simulator) which belongs to the finite element method category. PCMM has several merits over the existing analytical methods. First, it does not produce a nonphysical solution due to resonance, which is peculiar to the boundary element method for treating the dielectric problem. Secondly, the form of the integral equation keeps the same form irrespective to the source position, inside or outside of the dielectric, hence the program coding can effectively be done. Although this paper treated only the dielectric loaded slot antenna, it is expected that the more practical antennas will also be able to be analyzed with the similar merits, and PCMM will be applied for the design of the next generation high frequency antennas.