Sites such as radar tutorial .eu and ADI engineer zone can assist even the most novice on the primary function of radar’s in today’s world.
According to Mr Kraft blogs about how to build your own simple phased array beamformer, also called an electronically steerable array (ESA). That beamformer was based on the low-cost ADALM-PLUTO, which hopefully made it accessible to everyone interested in this topic. But it was only two antenna elements – and that limits the number of things we can do with it.
EVAL-CN0566-RPIZ, more commonly known as the “Phaser.” The Phaser is going to take us one step closer to a more practical phased array system. Its feature set will allow experimentation with beamforming and radar, principles that we couldn’t cover with the 2-element Pluto digital beamformer.
the goal is to steer an antenna “beam” without physically moving the antenna. now imagine that the sweep is complete, not by mechanically moving the antenna, but instead by electrically steering the beam. This would allow us to rapidly (almost instantaneously) position the beam wherever we wanted. And even to create multiple antenna beams, each focused on a different target. The basic concept is to set multiple antennas up in an array (either in a line or spaced along a 2-D plane), and then delay the timing of each of those antenna elements such that they constructively sum in one direction, and destructively sum in all other directions. The concept is not as hard as it may sound and is covered in his blog entry
Analog Devices’ designer Paul Brokaw once said: “Simulation will answer the question you asked. The lab will answer the question you didn’t know to ask.”
Analog Devices’ free software ADIsimPLL™ can be used to perform frequency domain performance analysis and time domain ramp analysis of ADI PLLs that include ramp generators. See the video “Using ADIsimPLL to Simulate Frequency Ramps on the ADF4158” for a tutorial.
The ADF4159 PLL includes ramp generation functionally and is included in the ADIsimPLL software, so this will be taken as our ramp generator for this example. Its max frequency of operation is 13 GHz so a VCO with a divide-by-2 output connected to the PLL input should be used to achieve a ramp covering the 24 GHz ISM band.
https://www.analog.com/en/resources/technical-articles/how-to-build-a-24-ghz-fmcw-radar-system.html
Marshal Bruner creates excellent videos on radars and their many applications