Multi-Mode, Pulsed X-band Exciter with Low Close-in Phase Noise and Low Power Consumption for Radar Application

This paper describes the design of pulsed X-band Exciter with very low close-in phase noise and low power consumption for radar application. The module generates X-band frequencies in 500 MHz bandwidth for radar transmission and as variable LO. The frequency step resolution is 20MHz. L-band frequency is also generated as fixed LO. In addition, clock frequencies of 50 MHz and 100 MHz are generated for coherent clocking of other radar subsystems. The module works on a fixed reference input of 100 MHz. The module generates signal for calibration of the RADAR and basic target simulation. The interface to the module is SPI.