Implementation of Transmitter and Receiver for GPR

[ali_cmi]

Most useful info will be to describe in short what effort is made and what results are achieved so far using VNA in S11 mode, setup or some published papers about.

Time ago, I conceived to try straight high power monopulse UWB radar, but abandoned that idea, just not my league, due to missing T&M equipment required, not exactly DIY hobby project. So I’m bit off GPR stuff now.

From description you give, reflection (amplitude and phase) from single port S11 and single antenna is used for signal extraction, and then processed somehow (don’t ask me..)
Some basic parameters can be deciphered from setup\instrument type description. Maybe some very cheap ready-made hardware, like “antenna analyzers”, in essence S11 measuring wideband sets, can be used?

With more info, I may point you to some particular design\reading\hardware etc.

(Song remains the same, only instead of balancing coils at kHz, this is about balancing bridges at GHz…)

What kind of information do you require?

About the effort, the goal was to provide a humble GPR prototype. It has a lot of limitations. Attached is a image of processed results. Not too much awe aspiring but this is the beginning. The darker set of pixels (best explanation I could make at the moment) indicates presence of a metallic object.

I can upload their thesis on it but I summarized it already.

[ali_cmi]

@ Tepco

As you must have perceived, I don't need a very sophisticated system to get these results. I just need a system which rules out the use of VNA in already-made system i.e., a transceiver which calculates s11.

[ali_cmi]

How about I move towards FMCW transceivers in millimeter range? Will it simplify my design?