Microstrip antenna designs via super - formula approach on microwave region

The majority of electronic devices manufactured in today's technologies are supposed to get connected with wireless network systems and to have a structure suitable for remote access. Wi-Fi and WLAN structures have an exceptional place in these systems to meet the demands. Antenna designs are the most significant part of these structures. To have a reduction in the dimensions of the devices used in communication technology, the size of the antenna systems also needs to reduce. Microstrip antenna structures are of an essential role in miniaturization of the antenna systems. Although microstrip antennas have disadvantages such as low gain and narrow bandwidth, the determinations of the shape of the patch, the base material, and the feeding method used in antennas are of great importance in solving these problems. In this thesis, geometries designed with inspiration from structures existing in nature are used as a patch shape in the microstrip antenna structure instead of traditional patch geometries such as square, rectangle, circle, ellipse. The Super-Formula approach is used to create patch geometries. The designed antennas are desired to work in WLAN (Wireless Local Area Network) technology, and the center frequency is selected as 5.2 GHz. The patch dimensions are calculated by considering the dielectric constant, the height of the substrate, and the center frequency of the antenna. The designed antennas are analyzed with the HFSS (High-Frequency Structure Simulator) program, which resolves electromagnetic fields using the finite element method. The necessary dimensional optimizations are provided for a better return loss. Also, antennas are produced with the PCB printing method, and necessary measurements are made using Scalar Network Analyzer. When the obtained experimental measurement and simulation results are compared, it is seen that the results are compatible. It is concluded that super-shaped microstrip antennas are smaller and more efficient than microstrip antennas that use traditional patch shape.