Electromagnetic shielding method using graphene and electromagnetic shiedling material
0002 Electromagnetic waves are electromagnetic energy generated from use of electricity
and have broad frequency domains. Depending upon frequencies, electromagnetic waves
are classified into home power frequency (60 Hz). extremely low frequency (0Hz to 1000
Hz), low frequency (1 kHz to 500 kHz), communication frequency (500 kHz to 300 kHz), and
microwave (300 MHz to 300 GHz: G-1 billion). Frequencies become high in order of an
infrared ray, a visible ray, an ultraviolet ray, an X-ray, and a gamma ray. 0003. In recent, the …
and have broad frequency domains. Depending upon frequencies, electromagnetic waves
are classified into home power frequency (60 Hz). extremely low frequency (0Hz to 1000
Hz), low frequency (1 kHz to 500 kHz), communication frequency (500 kHz to 300 kHz), and
microwave (300 MHz to 300 GHz: G-1 billion). Frequencies become high in order of an
infrared ray, a visible ray, an ultraviolet ray, an X-ray, and a gamma ray. 0003. In recent, the …
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