What are the various parameters of the cn0566 in FMCW mode？Through the original antenna, whether the angle of the human body at 60m can be distinguished？

These questions or range, resolution, and the parametrics to set them are lengthy to discuss.  They are all answered in this video series:   

https://www.youtube.com/playlist?list=PLxC4LYGYcMqmPDEr8E8AlktQPcuHx4izm

Additionally, try an online calculator for the radar range equation to see what would be required for your scenario.  Best of luck on your project!

Thank you very much for your answer, but the transmitting power of its directional antenna I can't find from the video or the web page. It is not only the frequency that determines the detection distance, but also the attenuation of the power. And I'm also worried about whether it will cause radiation hazards to the human body. So could you please tell me how many watts it transmits and is there an exact value for that?

Yes, here is the information I have:  https://youtu.be/xnaaD9Um3K8?si=Li6kmODTIZWfEStg&t=501

Thank you very much for your reply! I learned that the device's output power ranges from 10W to 50W. I have one last small question I'd like to trouble you with: what is the maximum frequency modulation range for the ADF4159? In the Range_dopplor_Plot.py file, it is set to 500MHz, but I just want to know what its maximum value is. According to one manual, it seems that its maximum range is PFD*4=110MHz*4=440MHz? I'm not sure how to calculate this, so please let me know the maximum value that can be set for this device. Thank you very much!

No, the max power is more like -3 dBm, not 10W (40 dBm).  The maximum ramp can be higher than 500Mhz, just so long as it fits within the range of the VCO.  There are also other challenges like antenna bandwidth and frequency planning.  So I would recommend to stay under 800MHz for best performance.  

Thank you so much for your help to me! But teacher, I have another tricky problem. I put the transmitting antenna directly facing the receiving board and moved it left and right to see the change in the "radiation pattern". But I put the transmitting antenna on the side of the receiver board, and the signal is reflected to the receiver board through the corner reflector, and I move the corner reflector left and right, and I can't see the change. Why is that? Is it because the power is not enough? Does it work for me to add a power amplifier? Or replace the Vivaldi antenna with a horn antenna?please give me an answer，Very Thank you!

This is the situation I have placed. I move the corner reflector left and right, but the Radiation Diagram polar plot doesn't change

No, that's not how radar or the example program work.  Did you watch the videos I referenced?  They will walk you through all of the setup and operation.  Please watch them carefully, and try out each of the example programs in the videos.  

Thank you very much. Yes, I watched all the videos on youtube. Including various cases as well as detecting UAVs with FMCW. However, I would like to publish a paper at a higher level through this device. Research has found that the possible advantage of this device over other radars is the ability to change the phase and gain of the hardware in real time, so I thought of the topic of Sum and Difference Beam tracking targets in real time. But in this case, the emitter is HB100, and if I want to track an object, it is not reasonable for the object to carry a transmitter at all times. So I had to transmit through the device, reflect to the object, and receive it. And it should be possible to measure the left and right movement of the object. However, for unknown reasons, it is not possible to detect the movement of the target through reflection. However, when the transmitting antenna is directly directed at the receiving board, the movement of the antenna can be observed. Do you know anything about this? I don't know if it's attenuated because of the low power? I'm sorry to bother you, but I'm looking forward to using it to publish a paper because it's so inexpensive compared to other phased array radars. But the general purpose of phased array radar is to track targets by reflecting signals.