Cascaded low pass/high pass filter phase shifter system

Details Cascaded low pass/high pass filter phase shifter system Cascaded low pass/high pass filter phase shifter system

1988-09-26

1990-01-09

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307304, 328167, 333172, 333173, 330306, H03B 1914, H03H 710, H03J 326, H03K 17687

Patent

active

048930350

ABSTRACT:
A cascaded low pass/high pass filter phase shifter system including: a series of semiconductor switches each having a control electrode and first and second load electrodes; a capacitance connected in series between each control electrode and ground; an inductance connected in series between each second load electrode of one semiconductor switch and the first load electrode of the adjacent semiconductor switch in the series; and means for selectively applying a control signal to each said control electrode for switching the associated semiconductor switch between a first state in which it operates as a low pass filter and a second state in which it operates as a high pass filter to introduce a phase shift in a propagated signal.

REFERENCES:
patent: 3257631 (1966-06-01), Evans
patent: 3522519 (1970-08-01), Petersen
patent: 4153887 (1979-05-01), Poppa
patent: 4560963 (1985-12-01), Sharpe
patent: 4723113 (1988-02-01), Marcoux

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