Differential phase shifter

Details Differential phase shifter Differential phase shifter

1986-10-21

1988-04-12

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307511, 328155, H03K 500, H03L 300

Patent

active

047376627

ABSTRACT:
A phase shifter according to this invention comprises circuit groups on a phase advance side and on a phase retardation side in each of which N phase shifting circuits of constant amplitude are connected in cascade, and in which the time constants of the successive phase shifting circuits are set at a geometrical progression of a fixed ratio .alpha., while the time constants of the phase shifting circuits on the phase retardation side are made .beta. times greater than those of the corresponding phase shifting circuits on the phase advance side. Thus, any desired phase difference can be attained according to the value .alpha., while a desired phase difference can be attained according to the value .beta., and the limits of a frequency band width are eliminated by increasing the number of stages N of the cascade connection of each circuit group.

REFERENCES:
patent: 3322970 (1967-05-01), Batteau
patent: 3500217 (1970-03-01), Allen
patent: 3590284 (1971-06-01), Yamane
patent: 3612916 (1971-10-01), O'Neill
patent: 3800265 (1974-03-01), Yoshioka et al.

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