倒梯形单脊波导缝隙行波阵的设计  

Design of inverted trapezoidal single-ridge waveguide slot traveling-wave arrays

作　　者：黄庆福[1] 陈小强[1] 

机构地区：[1]兰州交通大学自动化与电气工程学院,甘肃兰州730070

出　　处：《光通信研究》2014年第2期67-70,共4页Study on Optical Communications

基　　金：国家自然科学基金资助项目(51167009/E0703);铁道部重点项目基金资助(2011X008-D)

摘　　要：为了满足现代无线通信的要求,应用FEM(有限元法)编程计算出倒梯形单脊波导的截止波长和损耗系数,在考虑缝隙间互耦的情况下,采用行波近似计算了倒梯形脊波导缝隙阵的有源导纳,结合HFSS(三维高频结构电磁场仿真)软件提取了缝隙的归一化有源导纳,设计了一种新型的26元X波段倒梯形单脊波导缝隙行波阵。仿真结果表明,副瓣电平<-25dB,具有良好的驻波特性。In order to meet the requirements of modern wireless communications,this paper calculates the cut-off wavelength and loss coefficients of inverted trapezoidal single-ridge waveguide by programming the Finite Element Method （FEM）.With the mutual coupling between slots considered,it calculates the active admittance of inverted trapezoidal ridge waveguide slot ar-ray by using the traveling-wave approximation method and extracts the normalized active admittance of the slots by HFSS and finally designs a novel 26-element single-ridge waveguide traveling-wave slot array in the X band.Simulation results show that the side-lobe level is lower than -25 dB and the Voltage Standing Wave Ratio （VSWR）throughout the band is sound.

关 键 词：互耦 倒梯形单脊波导 有源导纳 行波阵 

分 类 号：TN820[电子电信—信息与通信工程]