Precision digital phase shifter

Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Phase shift by less than period of input

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Details

327231, 327115, 327117, 377 48, H03D 302

Patent

active

056525346

ABSTRACT:
A phase shifter that employs digital circuitry to achieve arbitrarily fine phase control of reference signals at frequencies extending to the Gigahertz region. The phase shifter includes a cascade of identical phase shift units that provide progressively finer phase control resolution over a full 360 degree range. The phase precision is set by the number of stages used.

REFERENCES:
patent: 4560960 (1985-12-01), Chanrion
patent: 4891774 (1990-01-01), Bradley
patent: 4991187 (1991-02-01), Herold et al.

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