Extended post processing for simulation results of FEM synthesized UHF-RFID transponder antennas

[摘要] The computer aided design process of sophisticated UHF-RFID transponderantennas requires the application of reliable simulation software. Thispaper describes a Matlab implemented extension of the post processorcapabilities of the commercially available three dimensional fieldsimulation programme Ansoft HFSS to compute an accurate solution of theantenna's surface current distribution. The accuracy of the simulatedsurface currents, which are physically related to the impedance at thefeeding point of the antenna, depends on the convergence of theelectromagnetic fields inside the simulation volume. The introduced methodestimates the overall quality of the simulation results by combining thesurface currents with the electromagnetic fields extracted from the fieldsolution of Ansoft HFSS.

[学科分类] 电子、光学、磁材料