This work presents a novel terahertz sideband separating receiver (SSR) implemented in silicon germanium 0.13 μm BiCMOS technology that covers a broad frequency range of 220–320 GHz. The proposed architecture provides simultaneous observation of spectral lines with a high image rejection ratio (IRR) across the entire operating frequency range. The double downconversion architecture with a first mixer operating as a subharmonic mixer was configured as an SSR leveraging the Weaver topology to provide two differential channels, one for the upper sideband and one for the lower sideband. The presented design demonstrates an IRR exceeding 20 dB across the entire frequency range of 220–320 GHz, without the need for calibration. To the best of the author's knowledge, this is the first reported H-band simultaneous sideband separation receiver in silicon technology. The fabricated receiver measures 1.2 × 1 mm ² and consumes 19 mW (not including a local oscillator power consumption), showcasing its potential for application in multiple-pixel arrays for space-borne observations.

中文翻译：

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用于星载天文台的 220–320 GHz 高镜像抑制边带分离接收机

这项工作提出了一种采用硅锗 0.13 μm BiCMOS 技术实现的新型太赫兹边带分离接收器 (SSR)，覆盖 220–320 GHz 的宽频率范围。所提出的架构可在整个工作频率范围内以高镜像抑制比 (IRR) 同步观察谱线。双下变频架构的第一个混频器作为分谐波混频器运行，被配置为 SSR，利用 Wea​​ver 拓扑提供两个差分通道，一个用于上边带，一个用于下边带。所提出的设计表明 IRR 在 220–320 GHz 的整个频率范围内超过 20 dB，且无需校准。据作者所知，这是第一个报道的硅技术H波段同步边带分离接收机。所制造的接收器尺寸为1.2 × 1 mm ²，功耗为19 mW（不包括本地振荡器功耗），展示了其在星载观测的多像素阵列中的应用潜力。