MIMO雷达mmic中两种SiGe d频带八倍器的频谱纯度比较

J. Romstadt, H. Papurcu, Ahmad Zaben, Steffen Hansen, K. Aufinger, N. Pohl
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引用次数: 5

摘要

本文介绍并比较了两种d波段MIMO雷达IC版本在英飞凌$0.13\ \mu \ mathm {m}$ SiGe BiCMOS技术B11HFC下的发射路径设计和测量结果。每个MMIC都安装在测试PCB上,其中差分馈电结构连接到d波段矩形波导(RWG)。每个MMIC有4个发射路径,产生和驱动d波段信号,还有4个接收路径。这些信号来自于由自举倍频器、分配网络、滤波器和放大器组成的八倍频器的频率倍增。由于八倍器链开始部分的分量变化很小,第二个MMIC实现了更好的输出信号的频谱纯度。在中心频率处,相对于d波段中不需要的频率分量,谐波抑制增加了13 dB以上。总体而言,两种版本的3db测量带宽均为37 GHz/31 GHz,峰值输出功率为−7.4 dBm/−4.7 dBm,中心频率为132.5 GHz/134.5 GHz。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Comparison on spectral purity of two SiGe D-Band frequency octuplers in MIMO radar MMICs
This paper presents and compares the design and measurement results of two D-Band MIMO radar IC versions regarding their transmit paths in Infineon's $0.13\ \mu \mathrm{m}$ SiGe BiCMOS technology B11HFC. Each MMIC is mounted on a testing PCB where a differential feeding structure is connected to a D-Band rectangular waveguide (RWG). Every MMIC has four transmit paths, which generate and drive the D-Band signals, and four receive paths. These signals result from frequency multiplication with octuplers that consist of bootstrapped frequency doublers, distribution networks, filters, and PAs. Due to minor changes to components at the beginning of the octupler chain, the second MMIC achieves a better spectral purity of the output signal. At the center frequency, the harmonic rejection increased by more than 13 dB with respect to unwanted frequency components in the D-Band. Overall, both versions have a measured 3 dB bandwidth of 37 GHz/31 GHz with a peak output power of −7.4 dBm/−4.7 dBm and a center frequency of 132.5 GHz/134.5 GHz.
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