Hal Murray wrote:

No, but I have enough years of experience with RF in general and radar
in particular to know building a phased array requires precise phase
(or frequency) control and you can't do that with an ultra wideband
device, which has a bandwidth of 500 Mhz.


What is the bandwidth of modern radars? I'd expect it to be
wide and using spread spectrum tricks to make jaming harder.


The bandwidth of a radar pulse is determined by the required resolution
of the distance. Thus there is generally no point to increase the pulse
bandwidth beyond ~100Mhz unless for the very special tasks like a target
feature recognition. However the carrier frequency and the spreading
code can vary from pulse to pulse.

Vladimir Vassilevsky

DSP and Mixed Signal Design Consultant

http://www.abvolt.com