ADF4159 Works with the ADF5901 to Achieve Dual-Path Antenna Transmission (24GHz Traffic Radar, 2Tx, 8Rx using two ADF5904)

Question

Hi, 
 How should I set the ADF4159 to supply the frequency for the two channels of the ADF5901? Should both channels transmit simultaneously, or should the two channels transmit alternately with a phase difference? 
 Additionally, I noticed there is a more integrated ADF5902. Would you recommend using the ADF5902 instead of the ADF4159 + ADF5901 for a 24 GHz radar with dual-channel? 
 
 Looking forward to your reply. Thanks a lot!

emrecangidik · Accepted Answer

Hi Arnold, 
 Only one output of the ADF5901 can be used at the same time. two transmit channels can be switched in a different time slot for MIMO applications. 
 You can think that ADF5902 is a combination of ADF4159 and ADF5901. However, FSK/PSK modulations and parabolic ramps are not available in ADF5902. 
 Thanks, 
 Emrecan)

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ADF4159 Works with the ADF5901 to Achieve Dual-Path Antenna Transmission (24GHz Traffic Radar, 2Tx, 8Rx using two ADF5904)