Double balanced mixing

Details Double balanced mixing Double balanced mixing

1988-05-19

1990-08-07

James, Andrew J.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

328156, 328 15, 3072191, 307271, G06G 700, H03B 1900

Patent

active

049470620

ABSTRACT:
A double balanced mixer comprising a plurality of transistors, each transistor being adapted to operate in the microwave frequency range and including an input electrode, a control electrode, and an output electrode, the transistors being arranged in a ring configuration with the control electrodes of a first pair of the transistors being interconnected and the control electrodes of a second pair of the transistors being interconnected; circuitry for coupling an input signal having a frequency within a predetermined frequency band in the microwave frequency range to the input electrodes of the ring of transistors and for producing a 180.degree. relative phase difference between the input signal applied to the input electrodes of first transistors of the first and second pairs of transistors and the input signal applied to the input electrodes of second transistors of the first and second pairs of transistors; circuitry for coupling a local oscillator signal to the control electrodes of the ring of transistors and for producing a 180.degree. relative phase difference between the local oscillator signal applied to the control electrodes of the first pair of transistors and the local oscillator signal applied to the control electrodes of the second pair of transistors; and circuitry for biasing the plurality of transistors in their linear operating regions; whereby the ring of transistors produces at the output electrodes an output signal having a frequency which is a function of the frequencies of the input signal and the local oscillator signal for input signals within the predetermined frequency band.

REFERENCES:
patent: 3424990 (1969-01-01), Escobosa
patent: 3723910 (1973-03-01), Cannon
patent: 4104672 (1978-08-01), Di Lorenzo et al.
patent: 4387439 (1983-06-01), Lin
patent: 4569119 (1986-02-01), Terada et al.
patent: 4728819 (1988-03-01), Vu
S. A. Maas, "A GaAs MESFET Mixer with Very Low Intermodulation", IEEE Transactions on Microwave Theory and Techniques, Apr. 1987, vol. MTT-35, No. 4, pp. 425-429.
S. A. Maas, "A GaAs MESFET Balanced Mixer with Very Low Intermodulation", 1987 IEEE MTT-S International Microwave Symposium Digest, vol. 11, Jun. 1987, pp. 895-898.
K. Kanazawa et al., "A GaAs Double-Balanced Dual-Gate FET Mixer IC for UHF Receiver Front-End Applications", IEEE Transactions on Microwave Theory and Techniques, Dec. 1985, vol. MTT-33, No. 12, pp. 1548-1554.
E. Oxner, "Junction FETs in Active Double-Balanced Mixers", Siliconix Inc. Application Note, Jun. 1973, pp. 1-16.
S. A. Maas, Microwave Mixers, 1986, pp. 301-309.
E. Oxner, "Designing a Super-High Dynamic Range Double-Balanced Mixer", Siliconix Application Note, Oct. 1986, pp. 1-15.

Affiliated with

Also associated with

Rating

Double balanced mixing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Double balanced mixing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Double balanced mixing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-962278