First, let me explain the system I want to create.
I am making a system to measure my heart rate wirelessly.
The bio-signal data obtained from the antenna has a voltage level of 2 Vpp through the amplifier and the input frequency is 3 GHz.
Input frequency (center frequency) = 3 GHz,
Input frequency (PRF) = 1 MHz,
ADC Clock frequency = 1.0001Msps,
The ADC will use undersampling to recover information about the amplitude of the original signal.
The final goal is to convert the signal received from the receive antenna into a digital signal through the ADC and send the information back to the PC through the FPGA.
I would attach the explanation file for understanding.
In conclusion, ADCs are needed to complete these systems.
First, wide bandwidth is needed. And should have a BW of approximately 2.5 to 3.5 GHz.
(Because the frequency of our antenna is around 3.0GHz).
Secondly, low sampling speed is required. A low sample rate is required for undersampling rather than oversampling. About 1 Msps to 10 Msps.
Of course, ADCs with these specs are not common, but do not want high performance. I would like you to recommend similar products.