FMCW防撞雷达前端

ICMMT 2000. 2000 2nd International Conference on Microwave and Millimeter Wave Technology Proceedings (Cat. No.00EX364) Pub Date : 2000-09-14 DOI:10.1109/ICMMT.2000.895748

J. Chunguang, Yang Xiaobo

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引用次数: 4

摘要

本文介绍了一种低成本的FMCW防撞雷达x波段前端的设计和性能，该前端主要由压控振荡器、缓冲器、环行器和混频器组成。它的工作频率为9 GHz，线性调谐范围超过300 MHz。优良的GaAs MESFET压控振荡器在高输出功率和宽调谐范围之间具有良好的平衡。在该电路中使用了GaAs FET平衡阻式混频器，即使在非常低的中频(至数十Hz)下也能提供低互调和低1/f噪声。这些特点都非常适合这种雷达的应用。

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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A front-end of FMCW anticollision radar

The design and performance of a low cost X-band front-end of an FMCW anticollision radar which mainly consists of VCO, buffer, circulator and mixer is described in this paper. It operates at 9 GHz with over 300 MHz linear tuning range. The excellent GaAs MESFET voltage controlled oscillator has a good balance between the high output power and wide tuning range. A GaAs FET balanced resistive mixer is used in this circuit which provides the low intermodulation and low 1/f noise even at the very low IF (to tens of Hz). All of these features are very suitable for the application of this kind of radar.

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ICMMT 2000. 2000 2nd International Conference on Microwave and Millimeter Wave Technology Proceedings (Cat. No.00EX364)

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