单元加载是缩小对数周期天线尺寸的方法之一。论述了对数周期天线的单元根部加集中电感负载时的设计思路以及确定单元加载量的方法,并采用矩量法分析了一种加载对数周期天线的性能。研究表明,感性加载是缩小对数周期天线尺寸的一种很有效的方法,该方法扩展了对数周期天线的应用场合。 Cell loading is one way to reduce the size of logarithmic periodic antennas. This paper discusses the design idea and the method of determining the cell loading of the unit root plus the inductive load in the logarithmic periodic antenna, and analyzes the performance of a logarithmic periodic antenna by using the moment method. The research shows that inductive loading is a very effective method to reduce the size of logarithmic periodic antennas. This method extends the application of logarithmic periodic antennas.