New circuit precisely compares phases of two RF signals nearly equal in frequency, such as two hydrogen-maser frequency standards. Measuring circuit minimizes interactions between two sources. Also stabilized against thermal effects and against noise that could produce erroneous readings. Heat sinking, buffer amplifiers, and low-noise zero-crossing detector make picosecond precision possible.


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    Title :

    Precise Phase Comparator for Nearly Equal Frequencies


    Contributors:

    Published in:

    Publication date :

    1982-12-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English





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