Abstract
A wideband, triple-resonant stacked patch antenna is proposed in this paper. The triple-layered antenna consists of a square ground plane, a mid-layered 240° circular sector patch radiator, and a top-layered circular parasitic patch. By introducing symmetrical rectangular slits to the 240° circular sector patch radiator, two resonant modes can be excited for radiation. Combined with the resonant mode within the parasitic patch, a tripleresonant, wideband characteristic is successfully obtained. The antenna is numerically simulated and experimentally verified. It exhibits an available radiation bandwidth (ARB) of 31.5% with average in-band gain of 7.1 dBi, while it maintains a relatively low-profile of 0.086-wavelength.
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