摘要
Abstract
A narrow impedance bandwidth of the common slotted array substrate integrated waveguide antenna limits its application in broadband radars.Considering wide operation frequency bandwidth under the dominant model of ridge waveguides,ridge substrate integrated waveguide is used in slotted array leaky-wave antenna designing.By taking "butterfly" distribution configuration for slot length,and covering a metal strip on metallized via-holes of ridge structure,a new broadband slotted array leaky-wave antenna based on ridge substrate integrated waveguide is realized which has a wide impedance bandwidth of more than 13％.The antenna is accurately simulated by using Ansoft HFSS software.The simulation results show that the relative impedance bandwidth of the antenna is more than 38％ (8.5～12.5 GHz),and the in-band gain is 14.0007 dBi.Fabricated through PCB process,this antenna has advantages of low profile,light weight,ease of integration,wide bandwidth,high gain,and meanwhile it has inherent characteristics including high directivity and beam steering capability,which make it suitable for communication equipment applications.关键词
基片集成波导/基片集成脊波导/漏波天线/蝶形分布Key words
Substrate integrated waveguide/Ridge substrate integrated waveguide/Leaky-wave antenna/Butterfly design分类
信息技术与安全科学
