Other Parts Discussed in Thread: AWR1843, IWR1843
Hi, I came across the following question about the total transmit power
I have a few questions,
Q1 :- This document shows the Tx power is 12 dBm. Is this for one antenna?
https://www.ti.com/lit/ds/swrs222c/swrs222c.pdf
Q2: How to calculate the combined radiated power in 3 Tx beamforming mode ? what will be the value? I'm wondering if this can be higher than the regulatory approved maximum transmit power.
I have noticed the authors of the previous question used the EIRP(Effective Isotropic Radiated Power) equation (cannot find any reference) and concluded it's an additional 4.7dBm.
EIRP = P + G + F = X + 10*log10(N) + G + F
where P[dBm] is total transmit power, G [dBi] is antenna gain, F [dB] is array gain, X [dBm] is transmit power per antenna element, and N is the number of antenna element, respectively.
I assume 10log10(3) = 4.7 is added. so that total P is 16.7 dBm. Is this correct?
I might have some follow-up questions but I first need to be certain my thought process is correct.
Really appreciate it if you can answer this and point out some references as it might help me with my limited antenna knowledge.
