低频射电天文接收相控阵噪声参数测量及其应用

2019 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2019-10-01 DOI:10.1109/CAMA47423.2019.8959782

A. Sutinjo, D. Ung

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引用次数: 0

摘要

相控阵的噪声温度是与天线单元相连的低噪声放大器噪声参数的函数。然而，低频射电天文波段(低于几百兆赫)的噪声参数通常不容易获得。我们讨论了噪声参数在相控阵中的重要性，并展示了一种低成本的噪声参数提取方法。

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Noise Parameter Measurement and Its Application in Receiving Phased Arrays for Low-Frequency Radio Astronomy

The noise temperature of a phased array is a function the noise parameters of the low-noise amplifiers connected to the antenna elements. However, noise parameters at low-frequency radio astronomy bands (below few hundred MHz) are not usually readily available. We discuss the significance of noise parameters in phased arrays and demonstrate a low-cost option for noise parameter extraction.

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2019 IEEE Conference on Antenna Measurements & Applications (CAMA)

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