170GHz缓变截面开放式谐振腔传播特性模拟  

Simulation research on propagation characteristics of 170 GHz open cavity with weakly tapered cross-section

作　　者：覃觅觅[1] 罗勇[1] 杨仕超[1] 王建勋[1] 

机构地区：[1]电子科技大学物理电子学院,成都610054

出　　处：《强激光与粒子束》2013年第2期427-430,共4页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(G0501040161101040)

摘　　要：在数值计算方法的基础上,编程模拟了高次模式TE31,12模在传统及改进型开放式缓变截面谐振腔的传播特性,计算了开放式缓变截面谐振腔的绕射品质因数,研究了改进型缓变截面谐振腔连接段的曲率半径对绕射品质因数的影响。结果表明,连接段曲率半径越大,绕射品质因数值越小。为了证明结论的正确性,利用仿真软件HFSS对另一工作于低次模TE0,1模的改进型缓变截面谐振腔进行仿真计算,并和编程计算结果比较,也得到了同样的结论。On the basis of numerical calculation methods, the propagation characteristics of the high order mode TE31,12 in the conventional open cavity with weakly tapered cross-section and improved cavity are simulated by numerical computation. Dif fractive quality factors of open cavities with weakly tapered cross section are also numerically computed. Then the influence of the curvature radius of the connection segment on the diffractive quality factor is investigated. The results show that the curvature ra- dius of the connection segment is another factor that affects the diffractive quality factor and the larger the curvature radius of the connection segment is, the smaller the diffractive quality factor becomes. In order to prove the correctness of this conclusion,an other improved cavity operating in the low-order mode TE0.1 is simulated by the simulation software HFSS, and the same conclu- sion is attained.

关 键 词：缓变截面 绕射品质因数 谐振腔 曲率半径 

分 类 号：TN129[电子电信—物理电子学]