Chun-Cheng Wang, Zhiming Chen, Hsin-Cheng Yao, P. Heydari
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A fully integrated 96GHz 2×2 focal-plane array with On-Chip antenna
A fully integrated 96GHz 2×2 focal-plane array (FPA) direct conversion imager in 0.18µm SiGe BiCMOS (fT/ƒmax=200/180GHz) employing four integrated antennas with Dicke switches and LO generation/distribution is presented. The PLL plus tripler achieves a locking range of 92.67–98.2GHz and phase noise of −93dBc/Hz at 96GHz measured at 1MHz offset. The 3.5×3mm2 chip achieves an average responsivity and NEP of 285MV/W and 8.1fW/√Hz, respectively, across 86–106GHz band and an NETD of 0.48K. The chip consumes 695mW from 1.8V/2.5V supplies.
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