Tool/software:
Hi,
How can i find out where near field ends and far field start from in IWR6843ISK if I am using first and last TX and all RX which gives me 8 antenna pairs? and the other case in which i am using all 12 antenna pairs? Do I need to know the distance between TX and RX in that case? If so, what is the distance between TX and RX? I will really appreciate your help!
Thanks!
Best,
Zahra
Hi Zhara,
In order to calculate the far field, the D you need to consider is = (the number of non-overlapping virtual antenna -1) * (lambda)/2
So, the first case would give you D = 7*(lambda)/2
the second case would also give you D = 7*(lambda)/2 (Explanation: With all TX enabled, there are 4 overlapping elements, hence the D would consider 8 only.)
You need to consider non-overlapping virtual antenna elements to calculate the total aperture. The spacing between the virtual antenna is (lambda)/2, therefore, the aforementioned equations. Hope that clears your query.
Thanks,
Swarnendu
