⚡ 本页包含 AI 生成的分析内容，仅供参考
该论文提出了一款封装的全波段连续波毫米波/太赫兹发射机（90-300GHz）和相干接收机（115-325GHz），用于高光谱成像。该设计采用CMOS工艺实现了极宽的频率覆盖和相干接收能力，解决了传统单频成像无法提供光谱信息的问题。
Millimeter-wave/THz hyperspectral imaging has numerous applications in security, non-destructive evaluation, material characterization, and medical diagnostics [1]. Unlike single-frequency imaging, hyperspectral imaging operates over a wide frequency range and offers spectroscopic information on each imaging pixel. This combines mm-wave/THz high-resolution imaging with spectroscopy and improves detection sensitivity and specificity. In practice, pulsebased imaging supports fast data acquisition, but requires receiver (RX) with real-time wideband sampling (>50GHz). Such instantaneous broadband imaging modality inevitably exhibits severely degraded sensitivity (due to integrated noise) and requires high-end signal sampling, both of which make it very challenging to achieve a low-cost SoC solution. On the other hand, continuous-wave (CW) imaging supports better sensitivity, especially using coherent detection method
Taiyun Chi, Min-Yu Huang, Sensen Li, Hua Wang
Georgia Institute of Technology, Atlanta, GA