Double-balanced mixer circuit

Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Frequency or repetition rate conversion or control

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Details

327113, 327355, 327356, 327254, 327231, 333138, 333100, 455326, 455333, H04B 128, H04B 126

Patent

active

055594573

ABSTRACT:
A double-balanced mixer circuit which consumes less power, and is capable of operating on a low voltage power source, because an output of a first signal having a phase lag of 90.degree. from a first frequency signal and an output of a second signal having a phase lead of 90.degree. over the first frequency signal are provided by means of a first phase shifter, an output of a third signal having a phase lag of 90.degree. from a second frequency signal and an output of fourth signal having a phase lead of 90.degree. over the second frequency signal are provided by means of a second phase shifter, thereby generating a radio frequency signal by mixing the first signal and the third signal in a first dual gate circuit, and generating a radio frequency signal by mixing the second signal and the fourth signal in a second dual gate circuit.

REFERENCES:
patent: 4308473 (1981-12-01), Carnes
patent: 4658440 (1987-04-01), Pavio et al.
patent: 5023576 (1991-06-01), Staudinger et al.
patent: 5060298 (1991-10-01), Waugh et al.
patent: 5303417 (1994-04-01), Laws
"GaAs Dual-Gate FET for Operation Up To K-Band" -IEEE Transaction On Microwave Theory and Techniques, (vol. MTT-32, No. 3) pp. 256-260, Mar. 1984.
"Wide Bandwidth MMIC Power Dividers: Implementation And A Practice Design Technique" -Microwave Journal, pp. 73-74, 78, 80, 82, and 90, Feb. 1990.
"Low Power Quadrature Modulator IC's For Digital Mobile Radios" --The 3rd Asia-Pacific Microwave Conference Proceedings, Tokyo, pp. 771-774, 1990.

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