Hong Bao

On integrated visual optimization system for large reflector antenna structures

Reflector antenna structural design is an integrated problem involving structural and electromagnetic performance analysis. The synthetic analysis is discussed in details of reflector antennas based on the coupled mathematical optimization model of structural-electromagnetic performances. The optimization procedure is developed based on the improvement of both the structural performances and electromagnetic performances. Finally, the coupled analysis platform is developed, which integrates the techniques of the data library management, the selection of optimization algorithm, and variable resolution and merge. An optimization analysis of a 16-m antenna is made by the platform with useful and satisfying result obtained showing the potential of optimization platform.

On coupled structural-electromagnetic modeling and analysis of rectangle active phased array antennas

The analysis of electromagnetic performances of active phased array antennas with distorted plane errors is important to the engineering development of high-performance antennas. An coupled model is developed, which describes the effect on the performances of the errors caused by the bent and bowl shape distortion in the plane element positions. The application of the model to a plane array antenna demonstrates the degradation of the sidelobe level and gain of the antenna with different distortion grades. The satisfactory analysis results provide a theoretical guidance for the engineer to determine the structural tolerance.