[1]阴亚东,张利红,孟海涛,等.780/868/915MHz频段无线传感器网络低功耗电流复用频率综合器[J].东南大学学报(自然科学版),2011,41(6):1146-1151.[doi:10.3969/j.issn.1001-0505.2011.06.005]
 Yin Yadong,Zhang Lihong,Meng Haitao,et al.780/868/915 MHz frequency bands low power current reusing frequency synthesizer for wireless sensor network[J].Journal of Southeast University (Natural Science Edition),2011,41(6):1146-1151.[doi:10.3969/j.issn.1001-0505.2011.06.005]
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780/868/915MHz频段无线传感器网络低功耗电流复用频率综合器()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
41
期数:
2011年第6期
页码:
1146-1151
栏目:
电路与系统
出版日期:
2011-11-20

文章信息/Info

Title:
780/868/915 MHz frequency bands low power current reusing frequency synthesizer for wireless sensor network
作者:
阴亚东1张利红2孟海涛1杜占坤1阎跃鹏1
(1中国科学院微电子研究所,北京 100029)(2福建江夏学院电子信息科学系,福州 350108)
Author(s):
Yin Yadong1Zhang Lihong2Meng Haitao1Du Zhankun1Yan Yuepeng1
(1Institute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, China)
(2Department of Electronic Information Science, Fujian Jiangxia University, Fuzhou 350108, China)
关键词:
无线传感器网络 低功耗 电流复用 频率综合器 压控振荡器 锁定检测
Keywords:
wireless sensor network low power current reusing frequency synthesizer voltage controlled oscillator locked detecting
分类号:
TN4
DOI:
10.3969/j.issn.1001-0505.2011.06.005
摘要:
提出了一种适用于780(中国)/868(欧洲)/915(美国)MHz频段无线传感器网络收发机的低功耗频率综合器,采用电流复用技术使压控振荡器(VCO)和分频器共享偏置电流从而降低了功耗.集成了新型锁定检测门限可编程的锁定检测器用于锁相时间指示.频率综合器采用0.18μm CMOS工艺进行验证和测试.测试结果显示:频率覆盖范围约为770~930 MHz; 输出信号频率为868 MHz时带内相位噪声为-87dBc/Hz,频偏100 kHz和1MHz处相位噪声分别为-98和-124dBc/Hz; 在不同锁定检测门限下测得锁定时间为91~112 μs; 在工作电压为1.8V时,频率综合器工作电流约为3.9 mA.
Abstract:
A low power frequency synthesizer suited for wireless sensor network transceiver in 780(China)/868(Europe)/915(USA)MHz frequency bands is proposed. The current reusing technique is adopted to make the voltage controlled oscillator(VCO)and divider share a common bias current so to cut down the power budget. A novel lock detector with programmable locked-detecting thresholds is integrated in frequency synthesizer to detect the locked time. Frequency synthesizer was fabricated in 0. 18 μm CMOS(complementary metal oxide semiconductor) technology and the measurement was carried out. Test results show that the frequency rang of synthesizer is 770-930 MHz; when the output frequency is 868MHz, the phase noise is -87dBc/Hz in band, with -98dBc/Hz@100 kHz and -124dBc/Hz@1MHz; the measured locked time is 91~112 μs with different locked-detecting thresholds; the total current of synthesizer is 3. 9 mA under 1. 8 V supply.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介: 阴亚东(1981—),男,博士,助理研究员,yinyadong@ime.ac.cn.
基金项目: 国家科技重大专项资助项目(2009ZX03006-005).
引文格式: 阴亚东,张利红,孟海涛,等.780/868/915MHz频段无线传感器网络低功耗电流复用频率综合器[J].东南大学学报:自然科学版,2011,41(6):1146-1151. [doi:10.3969/j.issn.1001-0505.2011.06.005]
更新日期/Last Update: 2011-11-20