Research Article

Design of an Ultrawideband Circularly Polarized Printed Crossed-Dipole Antenna Based on Genetic Algorithms for S-Band CubeSat Applications

Table 4

Simulation results at 2.25 GHz before and after optimization.

Type of studyMaximum gain (dBi) at 2.25 GHzReflection coefficient S11 (dB) at 2.25 GHz−10 dB bandwidth (GHz)Axial ratio (dB) at 2.25 GHz3 dB axial ratio bandwidth (GHz)

Before genetic algorithms7.37−1.75Not defined20.58Not defined
After genetic algorithms7.6−15.961.362.370.36