光控相控阵天线的微波波束成形技术研究

Phased array radar technology provides potential solutions to the problems of working under the situations such as strong noise, strong interruption and hard impact. Thus, its development is popular around the world. Demonstrated by experiments, the disadvantages in current phased array system can be overcome by taking advantages of cable and photoelectric technology. These methods can improve and uprate the capacity of phased array system, enlarge the fields of application of phased array technology. This paper focuses on the investigation of worldwide development and critical technology of phased array antenna and optical-controlled phased antenna, gives out summaries based on analysis. The microwave beam forming is analyzed in this paper. Based on linear array of N=4, the principles of phase control is demonstrated. The performance of phased array antenna is determined by the following five elements. This paper discusses and analyzes qualitatively only from the number and position of the elements.