Direct Generation Of RF Signals using Photonic Heterodyne method For Radar Applications

Microwave or Millimeter wave signal generation using photonic methods provides low loss, less complex, wide bandwidth and Electro Magnetic Interference (EMI) free solutions. This work is based on the generation of commonly used `L' and `S' band of radio frequency (RF) signals by using Optical heterodyne method. The paper mainly focuses on the generation of the signals and its evaluation using both modeling and experimental methods. The work brings out some of the results obtained during the evaluation process of this method with the related observations. This method can also be extended for the generation of higher band of RF signals as well as for other frequency modulated signals.