Fig. 1. 3D model of four-element antenna array

Fig. 2. Field intensity distribution

Fig. 3. Gain distribution

Fig. 4. Circular polarization characteristics

Fig. 5. Sweep diagram of reflection coefficient and isolation

Fig. 6. Directional beam forming diagram with adjustable main lobe direction

Fig. 7. Relation between phase offset and main lobe offset angle

Fig. 8. Field intensity distribution

Fig. 9. Gain distribution

Fig. 10. Circular polarization characteristic