An Improved Triple-Tunable Millimeter-Wave Frequency Synthesizer with High Performance

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In this letter, an improved triple-tunable frequency synthesizer structure to achieve both high frequency resolution and fast switching speed without degradation of spurious signals (spurs) level performance is proposed. According to this structure, a high performance millimeter-wave frequency synthesizer with low spurious, low phase noise, and fast switching speed, is developed. This synthesizer driven by the direct digital synthesizer (DDS) AD9956 can adjust the output of a DDS and frequency division ratios of two variable frequency dividers (VFDs) to move the spurious components outside the loop bandwidth of the phase-locked loop (PLL). Moreover, the ADF4252 based microwave PLL can further suppress the phase noise. Experimental results from the implemented synthesizer show that remarkable performance improvements have been achieved.

収録刊行物

  • IEICE transactions on electronics

    IEICE transactions on electronics 94(11), 1802-1806, 2011-11-01

    The Institute of Electronics, Information and Communication Engineers

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各種コード

  • NII論文ID(NAID)
    10030190290
  • NII書誌ID(NCID)
    AA10826283
  • 本文言語コード
    ENG
  • 資料種別
    SHO
  • ISSN
    09168524
  • データ提供元
    CJP書誌  J-STAGE 
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