Figure 4.

a) The simulated performance of our film antenna with 800 mm diameter and 400 mm focal length at 12 GHz. The inset depicts the phase responses of the six‐leveled unit cells in the antenna with different structural parameters obtained by the catenary model (blue) and numerical simulation (orange), respectively. b,c) The simulated results of 3D and 2D gain patterns at 12 GHz for a smaller antenna with 200 mm diameter and 100 mm focal length. d) The image of the satellite television system. In this system, the metafilm‐based antenna is responsible for focusing the signals emitted from ChinaSat 9 to the tuner. As this photo was taken outdoors, the strong sunlight influenced the contrast of the picture on the television.