微型化122ghz ISM波段FMCW雷达，微米精度

2015 European Radar Conference (EuRAD) Pub Date : 2015-12-07 DOI:10.1109/EURAD.2015.7346291

S. Scherr, B. Gottel, S. Ayhan, Akanksha Bhutani, M. Pauli, W. Winkler, J. Scheytt, T. Zwick

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引用次数: 38

摘要

本文采用一种小型化的122ghz ISM波段FMCW雷达来实现微米级精度。该雷达由SiGe单片雷达传感器和LCP片外天线组成。天线集成在QFN封装中。为了增加雷达的增益，使用了一个额外的透镜。结合频率和相位评估算法提供微米精度。显示了透镜相位中心对拍频相位的影响，从而显示了整体精度。此外，还研究了雷达系统在较大测量距离下的精度限制。在1.9 m和5mm的距离上，精度分别达到200 μm和2 μm。

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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Miniaturized 122 GHz ISM band FMCW radar with micrometer accuracy

In this paper, a miniaturized 122 GHz ISM band FMCW radar is used to achieve micrometer accuracy. The radar consists of a SiGe single chip radar sensor and LCP off-chip antennas. The antennas are integrated in a QFN package. To increase the gain of the radar, an additional lens is used. A combined frequency and phase evaluation algorithm provides micrometer accuracy. The influence of the lens phase center on the beat frequency phase and hence, the overall accuracy is shown. Furthermore, accuracy limitations of the radar system over larger measurement distances are investigated. Accuracies of 200 μm and 2 μm are achieved over a distance of 1.9 m and 5 mm, respectively.

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2015 European Radar Conference (EuRAD)

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