Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1987-04-09
1989-01-03
Miller, Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307262, 328133, 328155, H03L 700, H03K 906
Patent
active
047959223
ABSTRACT:
An amplitude/phase discriminator network the entirety of which is integrated on the same (GaAs) semiconductor chip, obtains a quadrature phase split through the use of a pair of orthogonal phase generators each of which comprises an all-pass network coupled with a pair of differential amplifiers. An unknown signal of interest, the phase and amplitude of which are to be derived, is applied to one pair of all-pass networks, while a reference signal, the amplitude and phase of which are known, is applied to the other pair of all-pass networks. Four quadrature outputs produced by the differential amplifiers contained within the pair of orthogonal phase generators are selectively coupled to a signal combining stage comprised of a diode detector-low pass filter network. At the output of this network there are produced a set of output signals each of which has a magnitude component representative of the magnitudes of the unknown and reference signals and a phase component representative of the difference between the phases of the reference and unknown signals. Since the amplitude and phase of the reference signal are known, the amplitude and phase of the unknown signal can be readily determined.
REFERENCES:
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patent: 3577088 (1971-05-01), Goggins, Jr.
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patent: 3976958 (1976-08-01), Seidel
patent: 4581595 (1986-04-01), Silagi
Mondal et al., "Phase Shifts in Single and Dual Gate GaAs MESFET's . . .", IEEE MTT Trans., vol. MTT 32N010, Oct. 84, pp. 1280-1287.
Suckling et al., "S-Band Shifter Using Mono. GaAs Circuits", ISSCC Digest of Tech. Papers, Feb. 1982, pp. 134-135.
Rice Christopher W.
Salvage Seward T.
Callahan Timothy P.
Harris Corp.
Miller Stanley D.
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