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An Intermittent Frequency Synthesizer with Accurate Frequency Detection for Fast Duty-Cycled Receivers
Yin,Yadong1; El-Sankary,Kamal2; Chen,Zhizhang2; Gao,Yueming1; Vai,Mang I.3; Pun,Sio Hang3
2020-01
Source PublicationIEEE Access
ISSN2169-3536
Volume8Pages:45148-45155
Abstract

An intermittent frequency synthesizer for fast duty-cycled receivers is presented in this paper. Different from state-of-art techniques which try to eliminate the initial phase error that degrades the intermittent frequency detection, a new frequency detector is proposed to maintain an accurate frequency detection regardless of the initial phase error. Moreover, an averaged fraction division scheme (AFDS) is integrated in the synthesizer to improve the frequency resolution. The frequency synthesizer is implemented and verified by using discrete devices and an FPGA. The measurement results show that the frequency detector provides a frequency detection accuracy of 0.88%, and the synthesizer achieves a frequency resolution of 0.625 MHz when controlled by a duty-cycled signal with a 6- \mu \text{s} period and a 2- \mu \text{s} time duration. The frequency synthesizer can perform an intermittent frequency hopping from 160MHz to 140MHz while requiring a period of 430~\mu \text{s} without disturbing the VCO's oscillation.

KeywordDuty Cycle Frequency Detector Frequency Synthesizer Initial Phase Error Phase-locked Loop
DOI10.1109/ACCESS.2020.2976749
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaComputer Science ; Engineering ; Telecommunications
WOS IDWOS:000524713900002
Scopus ID2-s2.0-85082036045
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Cited Times [WOS]:0   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorYin,Yadong
Affiliation1.Fuzhou University
2.Dalhousie University
3.University of Macau
Recommended Citation
GB/T 7714
Yin,Yadong,El-Sankary,Kamal,Chen,Zhizhang,et al. An Intermittent Frequency Synthesizer with Accurate Frequency Detection for Fast Duty-Cycled Receivers[J]. IEEE Access,2020,8:45148-45155.
APA Yin,Yadong,El-Sankary,Kamal,Chen,Zhizhang,Gao,Yueming,Vai,Mang I.,&Pun,Sio Hang.(2020).An Intermittent Frequency Synthesizer with Accurate Frequency Detection for Fast Duty-Cycled Receivers.IEEE Access,8,45148-45155.
MLA Yin,Yadong,et al."An Intermittent Frequency Synthesizer with Accurate Frequency Detection for Fast Duty-Cycled Receivers".IEEE Access 8(2020):45148-45155.
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