Hi.... to see how an antenna array creates steerable high-gain beams, we start with an antenna array of a specific size, which is then divided into sub-arrays of different sizes. It is described only one dimension. The same principles do, however, apply to both vertical and horizontal dimensions.
I'm pretty sure Fujitsu equipment is actually fairly advanced. The Japanese carriers tend to use domestic suppliers for their equipment and we don't see them much outside of Japan. One reason likely is the unique bands in Japan and support for proprietary and Japanese only legacy protocols. From what I've seen and heard, the equipment is surprisingly good and solid, and is definitely competitive with the big vendors we're used to seeing. Sent from my Pixel 4 XL using Tapatalk
They check for a sprint.com cookie is all. If you delete all the cookies for sprint.com, then it'll redirect to tmobile.com. That's why incognito works, since it clears all cookies from the session when you close it and you start fresh each time. They're probably looking for a particular cookie that's set if you've ever logged in in the past. Sent from my Pixel 4 XL using Tapatalk