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Effect of Wall Thicknesses on Broadband Design of Ka-Band TE_(21)-Mode Coupler
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作者 Wei Zheng Chao Wang +1 位作者 Wen-Li Yang Chun-Bang Wu 《Journal of Electronic Science and Technology》 CAS CSCD 2021年第4期350-356,共7页
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 cl... 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). 展开更多
关键词 Coupling loss ISOLATION TE21-mode coupler useless hole
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