electromagnetic wave


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electromagnetic wave

A wave-form produced by simultaneous oscillation of electric and magnetic fields perpendicular to each other. The direction of propagation of the wave is perpendicular to the oscillations. The following waves, in order of increasing frequency and decreasing wavelength, are electromagnetic: radio, television, microwave, infrared, visible light, ultraviolet, x-rays, and gamma rays.
See: electromagnetic spectrum for table
See also: wave
References in periodicals archive ?
Yu, "Metal organic framework-derived Fe/carbon porous composite with low Fe content for lightweight and highly efficient electromagnetic wave absorber," Chemical Engineering Journal, vol.
Firstly, we study the propagation of electromagnetic wave in free space by using FDTD method.
RF and microwave assets such as antennas, radars and lens systems, and their associated circuitries are necessary to be protected from strong incident electromagnetic waves which are intentionally or unintentionally introduced.
This paper is devoted to the investigation of statistical characteristics of multiply scattered electromagnetic waves in turbulent magnetized plasma with both electron density and external magnetic field fluctuations.
D., "A spectral recursive transformation method for electromagnetic waves in generalized anisotropic layered media," IEEE Trans.
The proposed structures have the advantage of thin structure, high absorption of incident electromagnetic waves, a reasonable operation bandwidth, in addition to be applicable for different incidence angles.
Thus, our experimental studies have confirmed the principle of heating stranded wire with high-frequency electromagnetic waves using two physical phenomena: the skin effect and discrete transformation of the radiated energy into heat.
Novel fractal monopole wideband antenna," Journal of Electromagnetic Waves and Applications, 22(2-3): 195-205.
where [subset]is the velocity of electromagnetic wave in vacuum.
The operation of the microstrip antenna is based on the resonance principle at electromagnetic wave frequency from the exposure field.
As a result of these technological innovations, electronic circuits have become more dense, frequencies have increased, and voltages throughout circuits have dropped, making circuits more susceptible to adverse impact from extremely weak electromagnetic waves. The fundamental areas of electromagnetic wave countermeasures are electromagnetic interference (EMI) countermeasures, which protect other circuits from the electromagnetic waves emitted by a device, and electromagnetic susceptibility (EMS) countermeasures, which protect against effects from external electromagnetic waves.

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