Design and Fabrication of Wideband DFD Phase Correlator for 6.0~18.0 GHz Frequency

6.0~18.0 GHz 주파수용 광대역 DFD 위상 상관기 설계 및 제작

  • Choi, Won (Department of Electronics Engineering, Incheon National University) ;
  • Koo, Kyung-Heon (Department of Electronics Engineering, Incheon National University)
  • 최원 (인천대학교 전자공학과) ;
  • 구경헌 (인천대학교 전자공학과)
  • Received : 2014.05.29
  • Accepted : 2014.06.10
  • Published : 2014.08.30


This paper has presented the design and fabrication of phase correlator for wideband digital frequency discriminator (DFD) operating over the 6.0 to 18.0 GHz frequency range. Fabricated DFD phase correlator has been measured I or Q output signal, and analyzed frequency discrimination error. The operation of the proposed mixer type correlator has been analyzed by deriving some analytic equations. To design the phase correlator, this paper has modeled and simulated IQ mixer and 8-way power divider by using RF simulation tool. Designed phase correlator has fabricated and measured. The phase error and frequency discrimination error have been presented using by measured I and Q output signal. Over the 6.0~18.0 GHz range, the root mean square(RMS) phase error is $4.81^{\circ}$, RMS and frequency discrimination error is 1.49 MHz, RMS.


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