Precision phase modulators

Details Precision phase modulators Precision phase modulators

H - Electricity

03

C

332/39

H03C 3/02 (2006.01) H03C 3/38 (2006.01)

Patent

CA 1110333

- 13 - PRECISION PHASE MODULATORS Abstract of the Disclosure The present invention relates to a precision phase modulator wherein a carrier signal of constant amplitude and frequency and a modulating signal are applied to the two inputs of the first one of a cascade of linear suppressed carrier amplitude modulators. Each subsequent modulator of the cascade arrangement concurrently modulates the output signal of the previous modulator of the cascade with the modulation signal. The input carrier signal and the output signal of each modulator of the cascade is tapped-off and weighted, the weighted carrier input and outputs of the even-numbered modulators and the weighted outputs of the odd-numbered modulators are separately added and are combined in quadrature to provide a phase modulated output signal.

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