摘要
文章介绍了一种基于槽隙波导(GGW)的低副瓣驻波天线设计方法。设计方法可以分两部分执行:首先,GGW传输线可以被等效为一个矩形波导,它的等效宽度可以通过一个简单的转换公式求得,转换公式通常应用在矩形波导的相位常数计算中;其次,低副瓣天线的设计可以通过斯蒂文森定理规定的条件实现。最后,文章设计并仿真了两种不同副瓣的低副瓣天线,天线的仿真结果与设计需求基本吻合,说明文章中的设计方法可以应用在在低副瓣槽隙波导天线的设计中。
A design procedure for groove gap waveguide(GGW)standing-wave antenna with low side lobes is presented.The procedure can be divided into two parts:firstly,GGW transmission line is equivalent to a rectangular waveguide,and the equivalent width is calculated by a simple transform of the propagation constant used for rectangular waveguide;secondly,low side lobe design process is employed based on Stevenson theory.Subsequently,two GGW antennas with different side lobes are modelled and simulated using full-wave analysis software.Simulated results agree very well with theoretical calculated results,which demonstrates that this simple procedure can be used for designing GGW antenna with low side lobes.
作者
张兴伟
ZHANG Xing-wei(Key Laboratory of Microwave Remote Sensing,National Space Science Center,University of Chinese Academy of Sciences,Beijing 100053,China)
出处
《电子设计工程》
2018年第22期81-85,共5页
Electronic Design Engineering
关键词
槽隙波导
天线设计
低副瓣
等效带宽
groove gap waveguide
antenna design
low side lobes
equivalent width
