JAJU737A June 2019 – March 2020 AWR1243 , AWR2243
5.2.2.1 In-lab Angular Resolution
A basic azimuth separation test was performed within an anechoic chamber radar test range. Two corner reflectors were placed with an angular separation of approximately 1.5 degrees at a distance of 8 m from the mmwave sensor.
In the current configuration, with 86 virtual array elements in the azimuth axis, and lambda/2 spacing of each element, a best-case 1.4 degree angular resolution is possible. This system measured a 1.5 degree separation, which is close to the expected value.
Figure 21. Two Corner Reflectors Separated by 1.5 Degrees in Azimuth 
Figure 22. Range-Doppler FFT Plots Showing Detected, Separated Peaks From Both Reflectors 