Miniaturization Design of Beidou Navigation Terminal Antenna

Abstract

Based on the theory of microstrip antenna, we design a microstrip antenna for application in Beidou navigation terminal. The designed antenna is a miniature circularly polarized antenna. The main radiation unit is a microstrip rectangular path that is cut a few corners and opened a groove. Cutting corners and opening a groove are to achieve the circular polarization and meet the requirements of miniaturization, respectively. The software HFSS are employed to simulate and analyze the properties of the designed antenna. Numerical results show that the designed antenna can satisfy the application requirements of Beidou navigation terminal antenna.