Substrate Integrated Waveguide Power handling Capability at Millimeter Wave with Surface Roughness Consideration

2021 IEEE MTT-S International Microwave and RF Conference (IMARC) Pub Date : 2021-12-17 DOI:10.1109/imarc49196.2021.9714526

A. Moulay, Abdelkader Zerfane, T. Djerafi

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Abstract

Abstract-This study investigates the power handling capability of the substrate integrated waveguide (SIW) transmission lines in millimeter-wave frequencies. The average power handling capability (APHC) which refers to self-heating is considered. The ohmic and dielectric losses expressions are used to predict the APHC as a function of the geometrical parameters and used material. In fact, small dimensions and the increased losses at millimeter-waves dramatically reduce the power handling capability. Moreover, the additional effect of the surface roughness doubles the conductor loss at millimeter-wave frequencies. The proper material and dimensions selection for SIW, which could increase its APHC are discussed. In addition, guidelines for investigating the oversized version of SIW are also presented. To investigating the oversized version of SIW are also presented. To validate the simulations, a set of transmission lines (microstrip, The good agreement of measured losses with the calculated validates this study.

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考虑表面粗糙度的基片集成波导毫米波功率处理能力

摘要:本文研究了基板集成波导(SIW)传输线在毫米波频率下的功率处理能力。考虑了平均功率处理能力(APHC)，即自热。利用欧姆损耗和介电损耗的表达式来预测apc作为几何参数和所用材料的函数。事实上，小尺寸和增加的毫米波损耗大大降低了功率处理能力。此外，表面粗糙度的附加效应使毫米波频率下的导体损耗加倍。讨论了合理的材料选择和尺寸选择，以提高材料的抗压强度。此外，还提出了调查超大版本SIW的指导方针。对超大版本的SIW进行了研究。为了验证模拟的正确性，在一组传输线(微带)上，测量的损耗与计算的损耗吻合良好。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2021 IEEE MTT-S International Microwave and RF Conference (IMARC)

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