The Effect Of Plasma To Communication

Plasma exist widely in nature, they hold about ninety nine percent theuniverse. For different shape plasma has different respond characteristics. Todifferent density of plasma, the absorption and reflection are different too, so ithas important value in studying the effect of plasma transmit in high frequencyelectromagnetic wave. It has abroad application foreground in universe physics,wireless interspace communications and electromagnetism shield technology.The main study contents as follow:(1)Summarized the study actuality in reciprocity of electromagnetic waveand plasma in recent years, and introduced the basic concept and characteristicof plasma too.(2)Introduced the basic theory of plane electromagnetic wave transmit inplasma. Firstly, from the equation of wave transmit in media, come out theanswer of one dimension wave equation. secondly, introduced the calculation ofplasma dielectric constant, and educed the dielectric constant in nonmagneticand magnetic plasma in model of primary theory .(3)Studied the transmit characteristic of plane electromagnetic wave innonmagnetic plasma. Mostly discussed the transmit of wave in homogeneousand inhomogeneous plasma, and gave the calculational method and emulationalresult. Coming out the relation graph, which reflect the reflected power andabsorbed power against plasma parameters that electromagnetic wave transmitin nonmagnetic plasma.(4)Studied the transmit characteristic of plane electromagnetic wave inmagnetic plasma. Mostly discussed the transmit characteristic of left-circle,right-circle and thundering module electromagnetic wave in inhomogeneous therelation graph, which reflect the absorbed power and reflected power againstplasma parameters that electromagnetic wave transmit in magnetic plasma.In the paper, analyzed and emulated the reflected and absorbed poweragainst plasma parameters that electromagnetic wave transmit in plasma intheory. The conclusion can offer a theory basic for carrying out communicationsand electron disturb better.