论文信息 - A DC-coupled CMOS transceiver chip with adaptive DC tuning for human activity detection

A DC-coupled CMOS transceiver chip with adaptive DC tuning for human activity detection

In this paper, a 5.8 GHz DC-coupled CMOS radar sensor transceiver chip with a bandwidth of 1 GHz for human activity detection was designed and fabricated in IBM 180-nm process. This transceiver chip adopts the direct-conversion quadrature architecture. Variable gain amplifiers are used to provide different gains for the baseband signal in order to carry out different applications. A novel adaptive DC tuning mechanism is implemented to eliminate frequency-dependent distortion and large DC offset at the receiver output. The size of the chip is 1.5 mm by 1.5 mm. Post-layout simulation results showed this transceiver chip has promising performance that is beneficial for human activity related detection.

Changzhi Li | Yihong Yang | Yiran Li

[1] Jenshan Lin,et al. Design and Analysis of a 60-GHz CMOS Doppler Micro-Radar System-in-Package for Vital-Sign and Vibration Detection , 2013, IEEE Transactions on Microwave Theory and Techniques.

[2] Yihong Yang,et al. Doppler Radar Motion Sensor With CMOS Digital DC-Tuning VGA and Inverter-Based Sigma-Delta Modulator , 2014, IEEE Transactions on Instrumentation and Measurement.

[3] Changzhan Gu,et al. Frequency-selective distortion in continuous-wave radar displacement sensor , 2012 .

[4] Changzhi Li,et al. A regulated 3.1–10.6 GHz linear dual-tuning differential ring oscillator for UWB applications , 2011, 2011 IEEE International Symposium of Circuits and Systems (ISCAS).

[5] Changzhi Li,et al. High-Sensitivity Software-Configurable 5.8-GHz Radar Sensor Receiver Chip in 0.13-$\mu$ m CMOS for Noncontact Vital Sign Detection , 2010, IEEE Transactions on Microwave Theory and Techniques.