Compact bistatic 160 GHz transceiver MMIC with phase noise optimized synthesizer for FMCW radar
Compact bistatic 160 GHz transceiver MMIC with phase noise optimized synthesizer for FMCW radar
复制标题
紧凑型双基地 160 GHz 收发器 MMIC，具有适用于 FMCW 雷达的相位噪声优化合成器
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
C. Waldschmidt
中科院分区：
文献类型：
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作者：
Martin Hitzler;Stefan Saulig;L. Boehm;W. Mayer;W. Winkler;C. Waldschmidt
本文提出了一种超紧凑型双基地 FMCW 雷达收发器 MMIC，频率为 160 GHz，具有基于混频器的合成器概念。集成混频器将具有稳定本地振荡器 (SLO) 信号的斜坡信号转换为 RF 输出信号。混频器的使用降低了斜坡信号的倍频系数，从而改善了 160 GHz 下的相位噪声。与斜坡输入信号相比，用于上变频的固定频率本地振荡器具有相对较小的相位噪声水平，并且不会对 160 GHz 的总相位噪声水平产生显着影响。除了合成器之外，MMIC 还包括一个最大输出功率为 2 dBm 的功率放大器、两个具有宽辐射方向图的高效集成天线以及一个 IQ 接收器。以 20 GHz 带宽记录的两个 FMCW 雷达响应显示了该传感器的动态范围及其近距离行为。紧凑型 SiGe MMIC 仅需要 1.4mm × 1.0mm 的芯片面积，3V 电源功耗为 285mW。
This paper presents an ultra compact bistatic FMCW radar transceiver MMIC at 160 GHz with a mixer-based synthesizer concept. The integrated mixer converts a ramp signal with a stabilized local oscillator (SLO) signal to the RF output signal. The usage of a mixer reduces the frequency multiplication factor of the ramp signal and hence improves the phase noise at 160 GHz. The fixed frequency local oscillator for the up-conversion has a comparably small phase noise level compared to the ramp input signal and does not contribute significantly to the total phase noise level at 160 GHz. Apart from the synthesizer, the MMIC also includes a power amplifier with a maximum output power of 2 dBm, two efficient integrated antennas with a wide radiation pattern, and an IQ-receiver. Two FMCW radar responses recorded with a bandwidth of 20 GHz show the dynamic range of this sensor and its near range behavior. The compact SiGe MMIC requires only a chip area of 1.4mm × 1.0mm and consumes 285mW from a 3V power supply.