A C-band Low-noise Frequency Synthesizer Based on Digital Phase-locked Loop

To reduce phase noise of microwave-band frequency synthesizer based on phase-locked loop(PLL), the method that the output signal of VCO is mixed with a Lo signal and the IF signal is detected, is proposed. Then, the compatible loop filter is designed. Finally, the experimental results prove that the...

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Published in2007 5th International Conference on Microwave and Millimeter Wave Technology : proceedings : ICMMT 2007 : April 19-21, 2007, Guilin, China pp. 1 - 3
Main Authors Yuan Xue-Lin, Zhu Chang, Yuan Nai-Chang
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.04.2007
Subjects
Filters
Frequency conversion
Frequency synthesizers
Phase detection
Phase locked loops
Phase noise
RF signals
Signal detection
Transfer functions
Voltage-controlled oscillators
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ISBN1424410487
9781424410484
DOI10.1109/ICMMT.2007.381410

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Abstract To reduce phase noise of microwave-band frequency synthesizer based on phase-locked loop(PLL), the method that the output signal of VCO is mixed with a Lo signal and the IF signal is detected, is proposed. Then, the compatible loop filter is designed. Finally, the experimental results prove that the phase noise of improved frequency synthesizer is greatly lower than that of directly phase-locked synthesizer.
AbstractList To reduce phase noise of microwave-band frequency synthesizer based on phase-locked loop(PLL), the method that the output signal of VCO is mixed with a Lo signal and the IF signal is detected, is proposed. Then, the compatible loop filter is designed. Finally, the experimental results prove that the phase noise of improved frequency synthesizer is greatly lower than that of directly phase-locked synthesizer.
Author Yuan Xue-Lin
Zhu Chang
Yuan Nai-Chang
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  organization: Nat. Univ. of Defense Technol., Changsha
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  surname: Yuan Nai-Chang
  fullname: Yuan Nai-Chang
  organization: Nat. Univ. of Defense Technol., Changsha
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Snippet To reduce phase noise of microwave-band frequency synthesizer based on phase-locked loop(PLL), the method that the output signal of VCO is mixed with a Lo...
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SubjectTerms Filters
Frequency conversion
Frequency synthesizers
Phase detection
Phase locked loops
Phase noise
RF signals
Signal detection
Transfer functions
Voltage-controlled oscillators
Title A C-band Low-noise Frequency Synthesizer Based on Digital Phase-locked Loop
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