摘要
针对传统法布里-珀罗(Fabry-Perot,FP)谐振天线增益带宽窄的问题,提出了一种在宽带范围内满足谐振条件的新型频率选择表面(Frequency Selective Surface,FSS)覆层结构。基于覆层反射相位斜率为正原理,设计了具有良好特性的双层FSS结构,并集成到单层介质板,将其作为微带天线的覆层,制备了一种新型宽带高增益微带天线。仿真和实测结果均表明,与微带天线相比,加载FSS覆层结构后的天线增益能在更宽频带内得到提高,并能明显降低天线剖面。
A new type of FSS superstrate structure meeting the conditions of resonant frequency in broadband range is proposed to solve the problem of narrow gain bandwidth in traditional Fabry-Perot（ FP） resonant antenna.A novel microstrip antenna is fabricated by using the double-layer FSS as the superstrate,and the double-layer FSS is integrated into a single medium plate. The gain and gain bandwidth enhancement of the antenna is attributed to the positive reflection phase gradient of the overlying strata element.The measured and simulation results show that as compared with the traditional structure,the gain after loading FSS structure is increased in a wider bandwidth and the antenna profile is obviously reduced.
出处
《无线电工程》
2016年第11期59-62,共4页
Radio Engineering
基金
国家自然科学基金资助项目(61361005
61001020
61461016)
关键词
频率选择表面
微带天线
高增益
frequency selective surface（FSS）
microstrip antenna
high-gain
