N. Pohl, T. Jaeschke, Simon Küppers, C. Bredendiek, D. Nüßler
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A compact ultra-wideband mmWave radar sensor at 80 GHz based on a SiGe transceiver chip (Focused session on highly-integrated millimeter-wave radar sensors in SiGe BiCMOS technologies)
This papers describes the capabilities of modern SiGe semiconductor technologies for the highly-integrated realization of Frequency-Modulated Continuous Wave (FMCW) Radar sensors. Based on an ultra-wideband oscillator, synthesizer and receiver, an ultra-wide bandwidth of 25 GHz around a center frequency of 80 GHz is demonstrated. This enables high-resolution radar measurements with a multi-target resolution of 7.1 mm and an absolute distance accuracy better than 1 μm, which enables new potentials for contact-free distance measurements even in harsh environments.
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