Overall Gain of the receiver from T/R module till ADC output

Hi akladha, 

I'll point you to some data that you can use in your own cascade analysis. There are a few sets of data: ADXUD1A, ADAR1000EVAL1Z, and the EVAL-AD9081 datasheet. There are additional components in the signal path that may or may not be included in your final design listed on the X-Band Development Platform product page under System Requirements (e.g. splitter/combiner, cables, etc.).

Single channel RX gain at 10 GHz for the RF section is approximately 31 dB whereas the RX full scale input (including the ADCs where full scale input is +6 dBm) is -25 dBm with a -50 dBm input power. These values are calculated/measured for a signal chain including the ADAR1000EVAL1Z ->  ZX10-2-183-S+ Mini Circuits Splitter/Combiner -> ADXUD1AEBZ -> 4 inch RF Cable -> EVAL-AD9081. Coherent combining would result in a cumulative gain of 49 dB for the RF section and RX full scale input of -43 dBm. In this design there are 4 subarrays where each subarray consist of 8 channels for a total of 32 coherently combined channels (20log10(8) signal gain improvement and 10log10(4) noise improvement). 

Regarding the 5W/10W TR modules, I spoke too soon mentioning these parts in the webinar recording. They are still early development and it's too early to determine availability. Apologies for the misdirection.

Regards, 
Sam 

hi,

Thanks for the reply,

what is single element  patch antenna gain used in the experiment and the polarization of the antenna used( horizontal or vertical)

hi,

Thanks for the reply,

what is single element  patch antenna gain used in the experiment and the polarization of the antenna used( horizontal or vertical)

Single element ideal gain is 5 dB and polarization of the antenna is 45 degree linear polarization. 

Sam