how many UWB antennas on the iphone11 or 12 ??🤔 because it can display azimuth, elevation angle (maybe 3D AOA )

Hi 😊 anyone , framework engineer and Apple

i just tested the nearby interaction with third party accessories from Qorvo DWM3000EVB module then run the sample app , regarding to the sample app from Qorvo as the result of the photo below

i have seen the Qorvo NI demo app ,will be able to display the azimuth and elevation angle as 3D positioning , so my question are -->

1.--> the azimuth and elevation angle are measured by the angle of arrival , right ?🤔

2.--> regarding to the Qorvo NI demo app displaying the azimuth and elevation angle , both technically are measured by ** 3D AOA (angle of arrival) ** , right ??🤔

3.--> regarding to question 2. ,* if iphone11 use 3D AOA to get azimuth , elevation angle * so --> HOW MANY UWB antennas are in the iphone 11 ?? 🤔 because it can get angular measurement as the photo above (Qorvo NI demo app ) 🤔 , -->please can you figure out or show the diagram of antennas on iphone 11 or any u1 equipped iphone🥺

Please let me know 🥺