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Jingjing Dong

Biography

Enrollment Date: 2011

Graduation Date：2016

Degree：Ph.D.

Defense Date：2016.05.28

Advisors：Zhihua Wang

Department：Institute of Microelectronics，Tsinghua University

Title of Dissertation/Thesis：Design Techniques of Dual-band Bluetooth Low Energy Transceiver

Abstract:
Moble health (m-health) is widely considered to be a promising method to relieve the heavy social burden. Wireless sensing devices can be used to collect the health information of a user and transmit to the user or a hospital. With these devices, the medical diagnosis and treatment can be performed more conveniently and cost less. The wireless communication in m-health usually adopts 400~457MHz and 2.4~2.4835GHz bands. It has been proved that dual-band simultaneous operation is favorable for m-health application, but no integrated chip (IC) supports yet. Besides, the form factor of m-health devices limits the battery, which leads to a short battery life. In order to overcome those problems, the dissertation focuses on the design techniques of a dual-band low-power low-cost transceiver. To support dual-band simultaneous operation, the dissertation proposes single-chip architecture of a transceiver with a dual-band antenna. The crosstalk in-band interference and out-of-band blocker are major challenges in the architecture. Two techniques are proposed, a harmonic suppression technique for 400MHz band power amplifier (PA) and an in-band interference active cancellation technique for 2.4GHz band low noise amplifier (LNA). With these two techniques, the sensitivity of the 2.4GHz band receiver is improved by 19dB, while the current consumption is only 75μA. To lower the power consumption and cost, the dissertation presents four methods/circuits, a low-cost gain calibration circuit for digital-controlled-oscillator (DCO), a fast automatic-gain-control (AGC) method for zero-IF/sliding-IF receivers, a phase-domain ADC based low-power demodulator for Bluetooth and a low-power low-cost DC offset calibration circuit. The proposed transceiver adopts zero-IF/sliding-IF and two-point modulation architectures and these methods/circuits help to make the transceiver practical and robust while further reducing the power consumption. The gain calibration circuit can help to improve the modulation quality with an extra divider, which costs much less than other publications. The fast AGC method can finish within 3μs under all circumstances defined in Bluetooth low-energy and thus help Abstract III to capture burst packets. The proposed demodulator fully reuses active circuits, which saves power consumption and chip area. The dc offset calibration circuits operate only once when the transceiver is power-on, so the average power consumption is 0mW. Furthermore, the calibration results cost much less memory. A dual-band Bluetooth low-enregy transceiver chip for m-health application has been designed based on the architecture and techniques mentioned above. Fabricated in 65nm CMOS process, the transceiver chip occupies 2.951.95mm2 area. The 2.4GHz band part of the chip supports 1/2/3Mbps data rate and achieves a sensitivity of -94dBm in Bluetooth low-energy mode. The minimum power consumption of 2.4GHz band receiver is 3.3mW. The measured EVM of 2.4GHz band transmitter is 1.9% and the power consumption is as low as 3.18mW. The 400MHz band part of the chip supports 3-10Mbps data rate. The receiver sensitivity is measured to be -86dBm with 10Mbps OQPSK modulation and the power consumption is 3.1mW. The EVM of 400MHz band transmitter is 5.95% and power consumption is as low as 2.98mW. It is proved that the energy efficiency of the chip is better than published transceivers and note that the chip supports dual-band simultaneous operation.

Publications

Papers：：

[1] Guangao Wang, Qi Xiao, Haigang Feng, Jingjing Dong, A 0.9V 1.2GHz-BW 15.8dBm-OIP3 Current Mode Analog Baseband for Broadband Receivers in 12nm FinFET CMOS, ICTA 2023, pp.81-82, 2023.

[2] Shaoquan Gao,Hanjun Jiang,Zhaoyang Weng,Yanshu Guo,Jingjing Dong,Fule Li,Zhihua Wang, A 7.9 μA multi-step phase-domain ADC for GFSK demodulators, Analog Integrated Circuits and Signal Processing, Vol.94, pp. 49 - 63, 2018.

[3] Zhaoyang Weng,Hanjun Jiang,Jingjing Dong,Yang Li,Jingyi Zheng,Yiyu Shen,Fule Li,Woogeun Rhee,Zhihua Wang, 400-MHz/2.4-GHz Combo WPAN Transceiver IC for Simultaneous Dual-Band Communication With One Single Antenna, IEEE Transactions on Circuits and Systems I: Regular Papers, Vol.65, No.2, pp. 745 - 757, 2018.

[4] Jingjing Dong,Hanjun Jiang,Kai Yang,Zhaoyang Weng,Fule Li,Jianjun Wei,Yanqing Ning,Xinkai Chen,Zhihua Wang, A wireless body sound sensor with a dedicated compact chipset, Circuits Systems and Signal Processing, Vol.36, No.6, pp. 2341 - 2359, 2017.

[5] Hanjun Jiang,Zhaoyang Weng,Yang Li,Jingjing Dong,Woogeun Rhee,Zhihua Wang, A 10 Mbps 0.3 nJ/bit OQPSK transceiver IC for 400-450 MHz medical telemetry, Electronics Letters, Vol.52, No.22, pp. 1830 - 1832, 2016.

[6] Zhaoyang Weng,Hanjun Jiang,Jingjing Dong,Fule Li,Zhihua Wang, 400–450 MHz power amplifier with high-order harmonic suppression for multi-protocol transceiver , Electronics Letters, Vol.52, No.23, pp. 1927 - 1929, 2016.

[7] Hanjun Jiang,Zhaoyang Weng,Yang Li,Jingjing Dong,Woogeun Rhee,Zhihua Wang, 10 Mbps 0.3 nJ/bit OQPSK transceiver IC for 400–450 MHz medical telemetry, Electronics Letters, Vol.52, No.22, pp. 1830-1832, 2016.

[8] Zhaoyang Weng,Hanjun Jiang,Jingjing Dong,Fule Li,Zhihua Wang, 400–450 MHz power amplifier with high-order harmonic suppression for multi-protocol transceiver, Electronics Letters, Vol.52, No.23, pp. 1927-1929, 2016.

[9] Jingjing Dong,Hanjun Jiang,Zhaoyang Weng,Jingyi Zheng,Chun Zhang,Zhihua Wang, A Fast AGC Method for Multimode Zero-IF/Sliding-IF WPAN/Ban Receivers, ISCAS 2015, pp. 1310 - 1313, 2015.

[10] Chao Yang,Shaoquan Gao,Jingjing Dong,Hanjun Jiang,Woogeun Rhee,Zhihua Wang, A 2.4 GHz two-point Δ-Σ modulator with gain calibration and AFC for WPAN/BAN applications, ASICON 2015, pp. 1 - 4, 2015.

[11] Jingjing Dong,Hanjun Jiang,Lingwei Zhang,Jianjun Wei,Fule Li,Chun Zhang,ZhiHua Wang, A low-power DC offset calibration method independent of IF gain for zero-IF receiver, Science China-Information Sciences, Vol.57, No.10, pp 1 - 10, 2014.

[12] Zhexiang Chi,Hanjun Jiang,Jingpei Xia,Heng Liu,Zhaoyang Weng,Jingjing Dong,Kai Yang,Zhihua Wang, A smart capsule for in-body pH and temperature continuous monitoring, MWSCAS 2014, pp. 314 - 317, 2014.

[13] Jianjun Wei,Hanjun Jiang,Lingwei Zhang,Jinjin Dong,Fule Li,Zhihua Wang,Chun Zhang, A wide range sigma-delta fractional-N frequency synthesizer with adaptive frequency calibration, Journal of Semiconductors, Vol.34, No.6, pp. 065002-1-5, 2013.

[14] Lingwei Zhang,Hanjun Jiang,Jianjun Wei,Jingjing Dong,Fule Li,Weitao Li,Jia Gao,Jianwei Cui,Baoyong Chi, Chun Zhang, Zhihua Wang, A Reconfigurable Sliding-IF Transceiver for 400 MHz/2.4 GHz IEEE 802.15.6/ZigBee WBAN Hubs With Only 21% Tuning Range VCO, IEEE Journal of Solid-State Circuits, Vol.48, No.11, pp. 2705 - 2716, 2013.

[15] Lingwei Zhang,Hanjun Jiang,Fule Li,Jingjing Dong,Jianwei Cui,Zhihua Wang, DC offset calibration method for zero-IF receiver removing the PGA-gain-correlated offset residue, AEU-International Journal of Electronics and Communications, Vol.67, No.7, pp. 578 - 584, 2013.

[16] Lingwei Zhang,Hanjun Jiang,Fule Li,Jingjing Dong,Zhihua Wang, A LUT-free DC Offset Calibration Method for removing the PGA-gain-correlated Offset Residue, ISCAS 2013, pp. 1704 - 1707, 2013.

[17] Jia Gao,Hanjun Jiang,Lingwei Zhang,Jingjing Dong,Zhihua Wang, A Programmable Low-Pass Filter with Adaptive Miller Compensation for Zero-IF Transceiver, MWSCAS 2012, pp. 226 - 229, 2012.

[18] Kai Yang,Hanjun Jiang,Jingjing Dong,Chun Zhang,Zhihua Wang, An adaptive real-time method for fetal heart rate extraction based on phonocardiography, BioCAS 2012, pp. 356 - 359, 2012.

[19] Lingwei Zhang,Hanjun Jiang,Jianjun Wei,Jingjing Dong,Weitao Li,Jia Gao,Jianwei Cui,Fule Li,Baoyong Chi, Chun Zhang, Zhihua Wang, A low-power reconfigurable multi-band sliding-IF transceiver for WBAN Hubs in 0.18μm CMOS, A-SSCC 2012, pp. 77 - 80, 2012.