A high-sensitivity 135GHz millimeter-wave imager by compact split-ring-resonator in 65-nm CMOS
Date of Issue2015
School of Electrical and Electronic Engineering
A high-sensitivity 135 GHz millimeter-wave imager is demonstrated in 65 nm CMOS by on-chip metamaterial resonator: a differential transmission-line (T-line) loaded with split-ring-resonator (DTL-SRR). Due to sharp stop-band introduced by the metamaterial load, high-Q oscillatory amplification can be achieved with high sensitivity when utilizing DTL-SRR as quench-controlled oscillator to provide regenerative detection. The developed 135 GHz mm-wave imager pixel has a compact core chip area of 0.0085 mm2 with measured power consumption of 6.2 mW, sensitivity of −76.8 dBm, noise figure of 9.7 dB, and noise equivalent power of 0.9 fW/√(Hz) Hz. Millimeter-wave images has been demonstrated with millimeter-wave imager integrated with antenna array.
© 2015 Elsevier Ltd. This is the author created version of a work that has been peer reviewed and accepted for publication by Solid-State Electronics, Elsevier Ltd. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1016/j.sse.2015.05.006].