一种无线体域网发射机体偏置线性化技术

柳扬; 杨银堂; 李迪; 石佐辰

doi:10.11999/JEIT160297

一种无线体域网发射机体偏置线性化技术

doi: 10.11999/JEIT160297

柳扬^1, ,,
杨银堂¹,
李迪¹,
石佐辰¹

基金项目:

国家自然科学基金(61504102)

计量
- 文章访问数: 1218
- HTML全文浏览量: 104
- PDF下载量: 315
- 被引次数: 0
出版历程
- 收稿日期: 2016-03-31
- 修回日期: 2016-07-28
- 刊出日期: 2017-02-19

Body Biasing Linearization Technique for Wireless Body Area Network Transmitter

Funds:

The National Natural Science Foundation of China (61504102)

摘要

摘要: 该文针对无线体域网人体介质通信(Human Body Communication, HBC)发射机严格的输出频谱指标，提出一种利用体偏置线性化技术进行频谱整形的技术。通过设计缓冲器中晶体管体偏置，从而调整晶体管二阶非线性系数，最终消除输出端的二阶互调项(Second order InterModulation, IM2)。采用0.35 m CMOS工艺和1.8 V供电电压设计了一个基于体偏置技术的HBC发射机实例。仿真结果显示二阶输入截点(IIP2)优化到 90 dBm，输出频谱在1 MHz处抑制-130 dBr。较传统电路，该技术提高了23 dB频谱抑制，使输出频谱符合无线体域网IEEE 802.15.6协议中-120 dBr的指标。
- 无线体域网 /
- 放大器 /
- 线性化 /
- 集成电路
Abstract: A body biasing linearization technique is proposed to shape output spectrum mask to meet the stringent specification of the Human Body Communication (HBC) standard for Wireless Body Area Network (WBAN). Body biasing of the buffer transistors is properly designed, accordingly second-order nonlinearity coefficient is tuned so that Second order InterModulation product (IM2) at the output of buffer is cancelled. Under 0.35 m CMOS process and a supply voltage of 1.8 V, a sample HBC transmitter based on body biasing is designed. Simulation results show that an optimum of 90 dBm IIP2 can be obtained and output transmit spectral mask at 1 MHz is attenuated to be -130 dBr (dB relative to the center frequency). Compared with conventional circuits, an improvement of 23 dB spectrum attenuation is achieved, satisfying the -120 dBr requirement of IEEE 802.15.6 for WBAN.
- Wireless Body Area Network (WBAN) /
- Amplifier /
- Linearization /
- Integrated circuit

HTML全文

参考文献(16)

邹卫霞, 康峰源, 杜光龙, 等. 基于中国医用体域网频段的物理层方案设计及干扰分析[J]. 电子与信息学报, 2015, 37(2): 429-434. doi: 10.11999/JEIT140901.

ZOU Weixia, KANG Fengyuan, DU Guanglong, et al. Physical layer proposal design and interference analysis based on Chinese medical band in wireless body area network[J]. Journal of Electronics Information Technology, 2015, 37(2): 429-434. doi: 10.11999/JEIT140901.

孙彦赞, 姜玉凤, 吴雅婷, 等. 基于改进式随机不完全着色算法的无线体域网干扰协调[J]. 电子与信息学报, 2015, 37(9): 2204-2210. doi: 10.11999/JFIT141621.

SUN Yanzan, JIANG Yufeng, WU Yating, et al. Improved random incomplete coloring for interference mitigation in wireless body area networks[J]. Journal of Electronics Information Technology, 2015, 37(9): 2204-2210. doi: 10. 11999/JFIT141621.

IEEE 802.15.6-2012. IEEE standard for local and metropolitan area networks part 15.6: Wireless body area networks[S]. 2012. doi: 10.1109/IEEESTD.2012.6161600.

LEE H, LEE K, HONG S, et al. A 5.5mW IEEE-802.15.6 wireless body-area-network standard transceiver for multichannel electro-acupuncture application[C]. IEEE International Solid-State Circuits Conference Digest of Technical Papers, San Francisco, 2013: 452-453. doi: 10.1109/ ISSCC.2013.6487811.

LEE H, CHO H, and YOO H J. A 33 W/node duty cycle controlled HBC transceiver system for medical BAN with 64 sensor nodes[C]. IEEE Proceedings of the Custom Integrated Circuits Conference, San Jose, 2014: 1-8. doi: 10.1109/CICC. 2014.6946058.

CHO H, LEE H, BAE J, et al. A 5.2mW IEEE 802.15.6 HBC standard compatible transceiver with power efficient delay-locked-loop based BPSK demodulator[C]. IEEE Asian Solid-State Circuits Conference, KaoHsiung, 2014: 297-300. doi: 10.1109/ASSCC.2014.7008919.

ONIZUKA K, ISHIHARA H, HOSOYA M, et al. A 1.9 GHz CMOS power amplifier with embedded linearizer to compensate AM-PM distortion[J]. IEEE Journal of Solid-State Circuits, 2012, 47(8): 1820-1827. doi: 10.1109/ JSSC.2012.2196629.

HU S, KOUSAI S, and WANG H. A broadband mixed-signal CMOS power amplifier with a hybrid class-G Doherty efficiency enhancement technique[J]. IEEE Journal of Solid-State Circuits, 2016, 51(3): 598-613. doi: 10.1109/JSSC. 2015.2508023.

BA A, CHILLARA V K, LIU Y H, et al. A 2.4GHz class-D power amplifier with conduction angle calibration for -50dBc harmonic emissions[C]. Radio Frequency Integrated Circuits Symposium, Tampa, 2014: 239-242. doi: 10.1109/RFIC.2014. 6851708.

刘洁, 胡波雄, 王刚, 等. 一种适用于Ku波段行波管放大器的预失真线性化器[J]. 电子与信息学报, 2014, 36(10): 2515-2520. doi: 10.3724/SP.J.1146.2013.01820.

LIU Jie, HU Boxiong, WANG Gang, et al. A predistortion linearizer for Ku-band traveling wave tube amplifier[J]. Journal of Electronics Information Technology, 2014, 36(10): 2515-2520. doi: 10.3724/SP.J.1146.2013.01820.

LIU Yang, ZHAO Bo, YANG Yintang, et al. A novel hybrid two-stage IM2 cancelling technique for IEEE 802.15.6 HBC standard[C]. IEEE Biomedical Circuits and Systems Conference, Lausanne, 2014: 640-643. doi: 10.1109/BioCAS. 2014.6981807.

LEE I Y, KIM S, LEE S S, et al. Spur reduction techniques with a switched-capacitor feedback differential PLL and a DLL-based SSCG in UHF RFID transmitter[J]. IEEE Transactions on Microwave Theory and Techniques, 2015, 63(4): 1202-1210. doi: 10.1109/TMTT.2015.2405536.

FRANCOIS B and REYNAERT P. Highly linear fully integrated wideband RF PA for LTE-advanced in 180-nm SOI[J]. IEEE Transactions on Microwave Theory and Techniques, 2015, 63(2): 649-658. doi: 10.1109/TMTT.2014. 2380319.

施引文献

资源附件(0)

访问统计