DIGITAL PHASE METER AND PHASE DETECTION METHOD
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United States of America Patent
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Dec 21, 2015
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Dec 19, 2014
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Abstract
A wideband digital phase meter and phase detection method are disclosed. The device measures a phase difference between 2 signals and is suitable for integration into a single MMIC. The input signals are compared digitally by using two EXOR gates and integrated over a phase comparison period. The resultant analogue signals are digitised using an Analogue to Digital convertor. Additionally, 2×D-Type registers are used to resolve the (0° to 180°) or (180° to 360°) ambiguity of the EXOR phase detector.
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