19.6 A 1.9mm-precision 20GS/S real-time sampling receiver using time-extension method for indoor localization

Contrary to conventional continuous-wave communication technologies, Impulse-radio Ultra-Wideband (IR-UWB) allows to have various functionalities such as communication, localization and radar by using a short pulse [1-4]. Also the short pulse occupies an extremely small period of time of the entire transmission period, so it is possible to consider a special technique for digitization of the short pulse which is essential for above applications.

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[2]  Zhiwei Xu,et al.  A 144GHz 0.76cm-resolution sub-carrier SAR phase radar for 3D imaging in 65nm CMOS , 2012, 2012 IEEE International Solid-State Circuits Conference.

[3]  Lei Wang,et al.  3–5 GHz 4-Channel UWB Beamforming Transmitter With 1$^{\circ}$ Scanning Resolution Through Calibrated Vernier Delay Line in 0.13- $\mu\hbox{m}$ CMOS , 2012, IEEE Journal of Solid-State Circuits.

[4]  Hossein Hashemi,et al.  A short-range UWB impulse-radio CMOS sensor for human feature detection , 2011, 2011 IEEE International Solid-State Circuits Conference.

[5]  Marian Verhelst,et al.  A Reconfigurable, 130 nm CMOS 108 pJ/pulse, Fully Integrated IR-UWB Receiver for Communication and Precise Ranging , 2010, IEEE Journal of Solid-State Circuits.

[6]  Marian Verhelst,et al.  20.1 A 40nm CMOS receiver for 60GHz discrete-carrier indoor localization achieving mm-precision at 4m range , 2014, 2014 IEEE International Solid-State Circuits Conference Digest of Technical Papers (ISSCC).