摘要
渐变开槽天线(Tapered Slot Antenna)具有宽频带、结构灵巧、易于电路集成和组成相控阵列等优点,但是通过分析和设计常规的指数型TSA天线,发现其存在后瓣和旁瓣较大、增益较低的缺点。通过改进天线整体结构和局部开槽的方法,优化了常规TSA天线表面和渐变槽线边缘的电流分布,并利用HFSS设计了一付工作于X波段、KU波段改进型TSA天线,与设计的常规天线TSA相比,天线主辐射方向3dB波瓣宽度增大,最大增益提高,后瓣和副瓣得到了一定的抑制。
The tapered slot antennas is a kind of broadband antenna, being the small size and convenient to be integrated with microwave module for phased array, however, great minor lobe and low gain could be seen in the analysis and design of the current tapered slot antennas. Through the change of distribution and slot, the TSA is optimized and the electric current char- acters of TSA are improved. A new kind of TSA for X-Ku band is proposed with HFSS. Com- pared to the tradition TSA, semi-circle distribution rectangle slot on the tail, semi-ellipse slot and exponential distribution rectangle on the side are controlled in the new TSA.
出处
《电子信息对抗技术》
2014年第2期75-78,共4页
Electronic Information Warfare Technology
关键词
超宽带
TSA天线
旁瓣
ultra wideband antennas
tapered slot antenna
minor lobe
