一种防电磁泄漏的微带线到E面波导过渡结构  

A Microstrip Line to E-plane Waveguide Transition Structure for Electromagnetic Leakage Prevention

作　　者：成迪 CHENG Di(College of Information Science and Engineering,Ningbo University,Ningbo 315211,China)

机构地区：[1]宁波大学信息科学与工程学院,浙江宁波315211

出　　处：《无线通信技术》2025年第1期36-38,43,共4页Wireless Communication Technology

摘　　要：本文设计了一种工作在W频段(78.2GHz-81.5 GHz)防电磁泄漏的微带线到E面波导过渡结构。在与E面波导相接处的金属片上开一个纵向耦合槽,使能量从微带线过渡到E面波导。通过调整耦合槽的尺寸与位置,能够实现其在工作频段内的优良阻抗匹配特性,通过添加间隙波导(GW),确保性能的稳定与高效。该过渡结构相比于传统的微带线转E面波导结构,不仅有良好的阻抗匹配特性,并且结构紧凑且可以有效地抑制电磁泄漏问题。仿真结果清晰表明,在78.2GHz-81.5 GHz的工作频段内|S11|均低于-20 dB。本文所设计的微带线到E面波导过渡结构紧凑,易于加工,在微波领域的一些特殊应用场合具有良好的应用前景。In this paper,a microstrip line to E-plane waveguide transition structure for electromagnetic leakage prevention operating in the W-band(78.2GHz-81.5 GHz)is designed.A longitudinal coupling slot is cut in the metal sheet at the interface with the E-plane waveguide to enable the energy transition from the microstrip line to the E-plane waveguide.Excellent impedance matching characteristics in the operating band can be achieved by adjusting the size and position of the coupling slot,while stable and efficient performance is ensured by the addition of a gapped waveguide(GW).Compared with the traditional microstrip line to E-plane waveguide structure,this transition structure not only has good impedance matching characteristics,but also has a compact structure,which can effectively suppress electromagnetic leakage problems.Simulation results clearly show that|S11|is below-20 dB in the 78.2GHz-81.5 GHz operating band,and the microstrip line to Eplane waveguide transition structure designed in this paper is compact,easy to process,and has a good prospect for some special applications in the microwave field.

关 键 词：波导 微带线 防电磁泄漏 结构紧凑 耦合槽 

分 类 号：TN81[电子电信—信息与通信工程]