Microstrip antenna is widely used in mobile communication devices and other portable devices. The microstrip antenna can be made on the same printed circuit board containing the electronic components of the device. This leads to efficient use of available space and makes the device compact. This shows that, in the case of mobile devices or other small communication devices, the size of the antenna plays a fundamental role. Therefore, by reducing the size of the antenna, you can reduce the overall size of the device. In recent years, with the increase in demand for small systems, small-sized low-frequency antennas have attracted a lot of interest from researchers. Many types of miniaturization techniques, such as the use of high permittivity dielectric substrate, slot on the patch, DGS on the ground plane, or a combination of them have been proposed and applied to microstrip patch antennas. The other method to miniaturize the microstrip antenna is to modify its geometry using irises or bent structures, based on the perturbation effect. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get Original EssayIn this paper the slots and DGS are used to miniaturize the rectangular microstrip antenna. The rapid development of wireless communication systems has increased the demand for compact microstrip antennas with high gain and broadband operating frequencies. The microstrip patch antenna has advantages such as low profile, compliance, light weight, simple manufacturing process and low manufacturing cost. However, general microstrip patch antennas have some disadvantages such as narrow bandwidth, etc. Performance improvement is needed to cover the demanding bandwidth. There are a number of well-known methods for increasing the bandwidth of antennas, including increasing the substrate thickness, using a low-dielectric substrate, using various impedance matching and feeding techniques. A microstrip patch antenna consists of a radiating zone on one side of a dielectric substrate that has a ground plane on the other side. The patch is usually made of conductive material such as copper or gold and can take any shape possible. The radiating zone and power lines are usually photo-etched onto the dielectric substrate. To simplify performance analysis and prediction, the patch is usually square, rectangular, circular, triangular, and elliptical or some other common shape. Please note: this is just an example. Get a custom paper from our expert writers now. Get Custom Essay This work concerns the design and analysis of a compact rectangular microstrip antenna for wireless applications. In this design, a combination of E-shaped and T-shaped slots is produced on the patch with some changes in the size of the ground structure. Initially the antenna is designed for the resonant frequency of 3 GHz and by using DGS and slots the resonant frequency is reduced to 0.9 GHz. This results in a dimensional reduction of the'86,72%..