Microstrip patch antenna (MPA) is widely implemented in different communication\nsystems. One of the main disadvantages of MPA which limits its applications\nis its narrow bandwidth. In this paper I enhanced the bandwidth of\nMPA by inserting multiple slots in its ground plane. I used FR-4 substrate to\ndesign this antenna. The dimensions of this antenna are 59 mm and 79 mm.\nThe dielectric constant is 4.4 and the height is 1.6 mm. I inserted up to 15\nslots in ground plane with 1mm width. The spacing between slots is 3 mm. I\ninvestigated two designs. In the first design, slots were arranged in parallel to\nthe feeding line. In the second one, slots were arranged horizontally to the\nfeeding line. The main objective of this paper is to design and simulate MPA\nsuitable for wide number of applications. Antenna bandwidth improvement is\n18%. All the simulations were obtained by using HFSS simulator.
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