frequency mixing

frequency mixing

[′frē·kwən·sē ‚mik·siŋ]
(optics)
The combination of two or more electromagnetic waves in a nonlinear medium to form another wave whose frequency is a sum or difference of the frequencies of the incident waves.
References in periodicals archive ?
Influence of audio frequency mixing of music and cricket voice on growth of edible mushrooms.
According to the ANU team, the conventional process of non-linear imaging through frequency mixing is done in bulk crystals, which is only suited for controlled laboratory environments, using high-power lasers.
If the frequency of the input signal changes faster than half the rate of frequency measurement then aliasing occurs (or only frequency mixing according to the pass-band Shannon sampling theory).
The primary objective of this paper is to conduct a theoretical study of this interesting medium to determine whether it is a good candidate for generating low ultrasonic frequency signal from the frequency mixing of two high frequency ultrasonic waves.
The 8V49NS0312 provides multiple output frequencies with little to no frequency mixing which is often an issue in similar devices in the market.
The frequency mixing phenomenon is obvious, which cannot clearly show the whole process of the oil-whirl.
Chan, "Optically injected semiconductor laser for photonic microwave frequency mixing in radio-over-fiber," Journal of Electromagnetic Waves and Applications, Vol.
As a result, many non-traditional topics have been included, including the application of nonlinear optics to the synthesis of coherent radiation in regions of the spectrum where lasers fail to work well; details of a practical frequency synthesis system beyond the basics of the theory of second harmonic generation, sum frequency mixing and parametric processes; and the frequency stabilization of lasers to cavities and cavities to lasers.
Figures 3 and 4 show diagrams of the Hartley and Weaver image-reject architectures, respectively (high frequency mixing products are removed by low-pass filtering -- not shown on figures).
The present work focuses on implementing graphene as the nonlinear element that will enable the frequency mixing operation in the millimeter wave band.
Frequency mixing occurs due to the modulated drain-to-source conductance ([g.sub.ds]) in the lower FET.
The lowpass filters at the output of the phase detectors are used both to reject the high frequency mixing products of the phase detectors and to limit the bandwidth of the output noise.

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