f_t
Member level 4
Dear All,
I am working on phase array antennas to do null-steering.
I have read lots of papers in this field, but still I have this question in my mind.
Which one is the better approach and why?
We go directly from antenna to ADC at RF (1.5GHz). Or first we do downconversion to IF (200MHZ) and then go to ADC? What are the differences? Converting RF to digital needs more bits?
Thanks for your help in advance.
I am working on phase array antennas to do null-steering.
I have read lots of papers in this field, but still I have this question in my mind.
Which one is the better approach and why?
We go directly from antenna to ADC at RF (1.5GHz). Or first we do downconversion to IF (200MHZ) and then go to ADC? What are the differences? Converting RF to digital needs more bits?
Thanks for your help in advance.