R-C signal dividers and signal filters

Details R-C signal dividers and signal filters R-C signal dividers and signal filters

1975-03-27

1976-08-24

Smith, Alfred E.

Wave transmission lines and networks

Plural channel systems

With balanced circuits

328167, 333 29, 333 70CR, 333 70T, H03H 706, H03H 718, H03H 730, H03H 748

Patent

active

039769585

ABSTRACT:
A class of signal dividers and signal filters is disclosed comprising first and second wavepaths coupled at one end to a common input port and at their other ends to a summing network to form a sum signal, and to a differencing network to form a differencing signal. Phase shift means are included along at least one wavepath for producing a differential phase shift between signals in said two wavepaths. In order that such devices be capable of operation at very low frequencies (i.e., a few Hertz), be physically small, and be capable of being made by means of integrated circuit techniques, the phase shifters are made solely of R-C passive elements, or of other devices that can be readily integrated.

REFERENCES:
patent: 2085940 (1937-07-01), Armstrong
patent: 2529117 (1950-11-01), Tompkins
patent: 3189820 (1965-06-01), Lowman
patent: 3292110 (1966-12-01), Becker et al.
patent: 3755761 (1973-08-01), Hartmann

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