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