Use of Microstrip Antennas in Aerospace Applications: L5 Band Satellite Communication Example

Today, microstrip antennas are preferred in many aerospace applications such as high performance vehicles, aircraft, military aircraft, Unmanned Aerial Vehicles (UAVs), spacecraft, radar systems, satellite and missile applications. In this study, the use of microstrip patch antennas in the aerospace industry and especially in global positioning systems (GPS) has been investigated and a sample microstrip patch antenna design has been realized in the GPS L5 security band. The designed antenna with high gain and circular polarization is simulated with High Frequency Structural Simulator (HFSS) and the results are analyzed. Numerical analysis of the simulations showed that at the center frequency of 1176 MHz, the S11 value was -38.85 dB, the bandwidth was 54 MHz and the gain was 6.07 dBm. As a result of these values, it is concluded that it can be used in the global positioning L5 security band.