third harmonic

third harmonic

[′thərd här′män·ik]
(physics)
A sine-wave component having three times the fundamental frequency of a complex signal.
References in periodicals archive ?
However, a further increase of the total LDMOS FET channel width leads to an increase of [C.sub.out] and, as a result, to a decrease in electrical length of the series microstrip line adjacent to the drain, the value of which becomes too small to provide appropriate third harmonic peaking.
This station consists of a picosecond laser (150 W to 400 kHz, 5/10 ps), the generation of the second and third harmonic waves for wavelength conversion laser at 515 or 532 nm, the movement axis, the scanning head and other necessary equipment such communication control system.
Complete tuning and monitoring of the incoming and out going signals up to the third harmonic provide frequency and time domain characterization of the nonlinear transistor behavior Signal compression curves, load-pull contours with harmonic tuning, DC and RF IV curves, and dynamic load lines are included.
Sufficient bandwidth to capture the third harmonic on 28-, 32- and 40-Gbps digital signals;
Use of a third harmonic wave realizes sinusoidal wave control, contributing to quieter motor operation.;
The Techspec ultrafast harmonic separators, also known as ultrafast harmonic beamsplitters, reflect second or third harmonic wavelengths from femtosecond lasers and transmit the fundmental pulse.
Therefore, it can conclude that [E.sub.2] and [I.sub.2] have same third harmonic phase position.
6 and 7 present the current spectra for the third harmonic and EPVA electrical unbalance fault patterns, respectively, considering the baseline and fault conditions.
Hardhienata, "Model of third harmonic generation and electric field induced optical second harmonic using the simplified bondhyperpolarizability model," Journal of the Optical Society of America B, vol.
With the same concept, the third harmonic describes more detail of the annual variation of precipitation and so on.
It can be seen that when the power grid contains 3rd background harmonic voltage, the third harmonic current on ac side increased significantly, and the 4th harmonic voltage on dc side also increased because of the interaction between the ac side and dc side.
Given that the amplitude of the higher harmonics in real systems rapidly decreases with an increase of their number, it can be concluded that the largest effect on the result of having the third harmonic.

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