摘要
本文利用拆线栅的等效电纳对多层折线圆极化器进行等效，根据其等效网络，采用罚函数法和变尺度法对四层板折线圆极化器进行优化设计，得出了不同频率范围内极化器的结构尺寸，并计算了相应的轴比。计算机模拟结果表明，在２～１８ＧＨｚ频率范围内，所设计的圆极化器轴比低于１ｄＢ，具有较好的实用价值。
In this paper, the equivalence of a meander-line circular polarizer with multiple sheets is performed by using the equivalent susceptance of the meander-line lattice. Based on the equivalent network, the optimization design of the four-sheet meander-line circular polarizer is implemented by means of SUMT method and BFGS method. We have obtained the structure dimensions of the circular polarizer and calculated its axial ratio within the various frequence ranges. The results of computer simulation show that within the frequence range of 2～18 GHz, the axial ratio of a circular polarizer designed is less than 1 dB. It has better practical value.
出处
《通信学报》
EI
CSCD
北大核心
1996年第1期97-101,共5页
Journal on Communications
关键词
折线栅
圆极化器
优化设计
微波器件
super wideband, meander-line lattice, circular polarizer, computer aided design
