Digital phase shifter

Details Digital phase shifter Digital phase shifter

H - Electricity

03

H

328/28

H03H 17/08 (2006.01) H03L 7/08 (2006.01)

Patent

CA 1260077

Abstract of the Invention A digital phase shifter uses a heterodyne concept to mix a continuous wave (cw) signal with a local oscillator which is an integer multiple of the difference frequency. The difference frequency is phase-locked, and the local oscillator frequency is divided into N increments by a counter. The count of the counter is compared to a microprocessor generated phase shift value which is added to the difference frequency. The phase shifted difference frequency is then converted up to produce the phase shifted continuous wave signal.

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