A wide operating bandwidth for a single-layer coaxially fed rectangular microstrip patch antenna can be obtained by cutting a U-shaped slot on the patch. This paper demonstrates several shapes of microstrip array antennas, such as rectangular and triangular patch antennas array. INTRODUCTION II. It is well known that microstrip antennas have very narrow impedance bandwidth, typically a few per cent. A multiband triple-layer probe fed double U-slot microstrip patch antenna for next generation wireless applications is proposed in this paper. Autores: P. I. In the proposed antenna design. Ultra-Wideband Elliptical Slot Antenna Fed by Tapered Microstrip Line with U-Shaped Tuning Stub. Many techniques have been proposed to design microstrip patch antennas with multiband characteristics. The impedance bandwidth of the prototype is ~% from 57GHz to. Specifically, 4×1, 2×1, and single. Folded Shorted Patch Antenna with Slots. Parametric. One of the. Liang; Localización: Microwave and. Li, J. The designed antenna with a U-slot loaded on the patch is excited by a single microstrip line. In this paper, the genetic algorithm (GA) has been applied to calculate the optimized length and width of rectangular microstrip antennas. . DESIGN OF THE ANTENNA.