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首页> 外文期刊>International Journal of Microwave and Wireless Technologies >Tunable multiport system for measurement of two-port scattering parameters
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Tunable multiport system for measurement of two-port scattering parameters

机译：可调多端口系统，用于测量两端口散射参数

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摘要

A novel multiport system, allowing for measurements of scattering parameters in over-two-octave frequency range is proposed. It is composed of two directional couplers and a standard 4 x 4 Butler matrix, and does not require any isolators. The presented system features a uniform power distribution providing the high precision of measurements, which can be further enhanced by a simple adjustment of the system's parameters. A comprehensive analysis of the proposed system configurations, a fully analytical calibration for transmission coefficient measurement, and the estimation of maximum measurement error are given. The proposed measuring system has been experimentally verified in a wide frequency range 1-5 GHz, by measurements of S-parameters of exemplary components. The measurement results are very close to the values obtained with the use of a commercial vector network analyser within the 50 dB range of measured values' magnitude.
机译：提出了一种新颖的多端口系统，该系统允许在超过两个八度的频率范围内测量散射参数。它由两个定向耦合器和一个标准的4 x 4 Butler矩阵组成，不需要任何隔离器。提出的系统具有均匀的功率分布，可提供高精度的测量，可以通过简单地调整系统参数来进一步增强。给出了对所建议的系统配置的全面分析，对传输系数测量的完全分析性校准以及最大测量误差的估计。通过测量示例性组件的S参数，已在1-5 GHz的宽频率范围内对提出的测量系统进行了实验验证。在测量值幅度的50 dB范围内，测量结果非常接近使用商用矢量网络分析仪获得的值。

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