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http://dx.doi.org/10.12673/jant.2014.18.4.341

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

Choi, Won (Department of Electronics Engineering, Incheon National University)
Koo, Kyung-Heon (Department of Electronics Engineering, Incheon National University)
Publication Information
Journal of Advanced Navigation Technology / v.18, no.4, 2014 , pp. 341-346 More about this Journal
Abstract
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.
Keywords
Digital frequency discriminator; Phase error; Isolation; LO leakage; Phase correlator;
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