I am currently working a project that needs to be able to read the signal strength of passive RFID tags. The concept is that the receiver will be placed between two passive RFID tags. These tags will be roughly 10-20 ft apart, the receiver will effectively have to work at a range of 5-10ft. In the best circumstances the reader will be able to receive both of the signals and their strengths. However, if this is not possible being able to read one signal with a strength will be adequate.
I have be doing some research, but have only found extremely overpriced commercial products(such as RFID radar). Even when emailing some of the companies to ask for a suggested product returns not even a response.
Any information or suggestions are appreciated