Fig. 1. Air-fed array unit antenna

Fig. 2. Antenna array structure

Fig. 3. Receiving and transmitting part

Fig. 4. Coupled part

Fig. 5. Structure and S parameters of radiant part

Fig. 6. Far-field parameters of the radiating part

Fig. 7. S parameters and far field direction pattern of antenna unit

Fig. 8. Electric field distribution of antenna unit

Fig. 9. Transmission array antenna

Fig. 10. Horn antenna pattern

Fig. 11. Antenna array S parameter

Fig. 12. Antenna array 2D pattern

Fig. 13. 0° beam scanning pattern