Effect of Wall Thicknesses on Broadband Design of Ka-Band TE_(21)-Mode Coupler  

作　　者：Wei Zheng Chao Wang Wen-Li Yang Chun-Bang Wu 

机构地区：[1]with the Institute of Space Antenna,China Academy of Space Technology,Xi’an 710100

出　　处：《Journal of Electronic Science and Technology》2021年第4期350-356,共7页电子科技学刊（英文版）

基　　金：the National Natural Science Foundation of China under Grant.No.61627817.

摘　　要：Commonly,the classical formulas are suitable for designing the TE21-mode coupler for the operating frequency under Ka-band by ignoring the wall thickness.However,in practice,for the one operated in the Ka-band,such classical formulas are not valid and the effect of wall thicknesses should be considered.Herein,we propose a design method for the Ka-band TE21-mode coupler via computer simulations,taking into account the wall thickness.The experimental results show that using the linear twice-weighted algorithm to optimize the coupling hole size can improve the coupler performance.And the bandwidth of such coupler increases by 10%with lower coupling loss(<0.5 dB)and higher isolation(>40 dB).

关 键 词：Coupling loss ISOLATION TE21-mode coupler useless hole 

分 类 号：TN622[电子电信—电路与系统]