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首页> 外文期刊>Telecommunications and Radio Engineering >Analysis and Optimization of a Quasioptical Waveguide-based Microcompact Testing Range for Submillimeter Waves
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Analysis and Optimization of a Quasioptical Waveguide-based Microcompact Testing Range for Submillimeter Waves

机译：基于准光波导的亚毫米波微紧凑测试范围的分析和优化

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摘要

A technique is suggested for estimating and optimizing the basic parameters of the microcompact test range built around a quasi-optical transmission line, like hollow dielectric beam guide (HDBG). The microcompact range (MCR) is intended for laboratory studies of scattering properties of physical objects through quasi-optical modeling in a submillimeter-wavelength guide. Analytical expressions have been obtained relating the MCR geometry and electromagnetic parameters with characteristics of the HDBG. These equations are analyzed with account of the real-life excitation characteristics of the HDBG. It has been shown that because of the imperfect excitation of the principal mode at the HDBG input, the MCR length should be increased essentially to keep dimensions of the work area unchanged at a specified admissible level of variations in the incident field. Conditions have been formulated for ensuring the required "purity" of the incident field in the work area of the MCR for fixed magnitudes of the excitation efficiency and self-filtering of the principal mode in the HDBG.
机译：建议使用一种技术来估算和优化围绕准光传输线（如空心介电束波导（HDBG））建立的微型测试范围的基本参数。微型范围（MCR）旨在通过亚毫米波长波导中的准光学模型对物理对象的散射特性进行实验室研究。已经获得了将MCR几何形状和电磁参数与HDBG特性相关联的解析表达式。考虑到HDBG的实际激励特性来分析这些方程式。已经表明，由于在HDBG输入端不完全激发主模，因此应增加MCR长度，以使工作区域的尺寸在入射场中指定的允许变化水平上保持不变。为确保固定的激励效率幅度和HDBG中的主模自滤波，已经制定了条件，以确保MCR工作区域中所需的入射场“纯度”。

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