“…The lens design process is carried out by following the flowchart with steps for lens geometry improvement provided in [
21] and using three dimensional (3‐D) simulations with CST Microwave Studio . Due to the heavy computational resources required when simulating the lens combined with array with a full‐wave simulation tool, only one iteration of the improvement steps flowchart of [
21] has been carried out. Here, the shape of the dielectric lens is adjusted to maximize the gain of the array antenna at the 3GPP n257 band, within a scanning range of 0° to 60° in the
‐plane, which is also the E‐plane of the antenna.…”