Abstract
In this paper, an analytical procedure for characterizing the dielectric loaded quasi-lumped element resonator (QLER) antenna for wireless applications is presented. The procedure is to examine the equivalent circuit model for the dielectric loaded QLER antenna and its feed structure, based on transmission line theory and equivalent lumped-element circuits. The corresponding lumped-circuit parameters of the equivalent circuit are extracted using analytical formulae taken from the literature and validated by comparison with numerical simulations such as a full-wave finite-element computer code and with experiments. The devised equivalent circuit explains its behavior as either a wide bandwidth or dual-band antenna, depending on the spacing between the dielectric resonator (DR) and the coaxial feed probe location.
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