Frequency doubling device

Details Frequency doubling device Frequency doubling device

1991-11-21

1993-03-16

Sikes, William L.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307271, H03B 1900, H03L 700

Patent

active

051948206

ABSTRACT:
The field of the invention is that of frequency doublers. More precisely, the present invention concerns a low noise frequency doubler, which in particular can operate at frequencies of the order of several GHz, or even of several tens of GhZ. According to the invention, the frequency doubler, operating in particular in the microwave range, is of the type including means of phase shifting to obtain two signals with a phase difference of 180.degree. from an input signal of frequency F and means for amplifying each of these two signals, the output signal of frequency 2F formed by adding the said amplified signals, the said means of amplification cooperating with means for varying the gain of the said means of amplification to make the gain of the said means of amplification practically proportional to the amplitude of the said amplified signals.

REFERENCES:
patent: 3030566 (1962-04-01), Collins
patent: 3398297 (1968-08-01), Huen
patent: 3681705 (1972-08-01), Spence
International Journal of Electronics, vol. 44, No. 5, May 1978, pp. 461-464, R. W. J. Barker, "Translinear Frequency Doubler".
IEEE Journal of Solid-State Circuits, vol. SC11, No. 2, Apr. 1976, pp. 341-343, S. Ashok, "Integratable Sinusoidal Frequency Doubler".
IEEE Transactions on Instrumentation and Measurement, vol. 37, No. 2, Jun. 1988, pp. 259-262, W. Surakampontorn, "Sinusoidal Frequency Doublers Using Operational Amplifiers".
Patent Abstracts of Japan, vol. 8, No. 95 (E-242), May 2, 1984, & JP-A-59 13 416, Jan. 24, 1984, Y. Masayuki, "Waveform Shaping Circuit".

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