A. Tang, G. Virbila, Yen-Hsiang Wang, Q. Gu, Zhiwei Xu, L. Du, Na Yan, Yu-Hsiu Wu, Yi-Cheng Wu, Yen-Cheng Kuan, Mau-Chung Frank Chang
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A 200 GHz 16-pixel focal plane array imager using CMOS super regenerative receivers with quench synchronization
We have realized a 200GHz 4×4 focal plane array (FPA) by using super-regenerative receiver (SRR) pixels made of 65nm CMOS for mm-wave imaging applications. With 16 pixel elements constructed on PCB, the FPA consumes 215mA under 1V power supply. Such realization is made possible by carefully analyzing the super-regenerative interference (SRI) commonly observed in close-spaced SRRs and applying a newly developed quench synchronization scheme to suppress the undesired SRI.
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