Digital Antenna Array Based Radar Ku-band Receiver

In this paper the digital antenna array based radar Ku-band receiver design results were represented. The radar system calculation results were used to generate receiver requirements. It was decided to design 160-channel receiver antenna array to obtain the required radar range. Each receiver channel is independent superheterodyne receiver with common heterodyne signal. The presented device consists of two parts: RF-frontend and digital signal processing core. Digital antenna array based radar ranging and direction-finding precision depends on receiver sensitivity. The receiver sensitivity depends on noise factor and effective number of bits of analog-to-digital converter.