Research On Theory And Application Of Left-handed Materials

A synthetic called "left-handed materials (Left-handed material)" because of its unusual electromagnetic properties, has gained more and more attention in material science, electromagnetics and applications of optical range, but also one of the frontier subjects of current international electromagnetics research. Negative refraction in left-handed materials can be produced through theoretical argumentation. Through the analysis of the current known several left-handed materials, and explore its basic principle of electromagnetic, the value of special properties of electromagnetic in the application and the prospect of the future development of.This paper briefly introduces the left-handed material, and expound the source of negative refractive index. Also that left-handed material characteristics and the development present situation analysis and the existence and development of left-handed materials physics breakthrough and development. The electromagnetic properties of left-handed material, combined with some data on some abnormal features:negative refraction, reversed Doppler effect, abnormal Cherenkov radiation, the perfect lens effect, magneto optic effect and anomalous goos Hansen shift is illustrated, and proves the case. Combined with the electromagnetic properties of the left-handed material experimental data analysis. Including the negative refraction effect in the numerical simulation and practical curve shows, for example, double negative phenomenon experimental artificial resonance structure in which. Also select complementary split ring resonator (CSRR) as the reflecting plate is studied, by some examples to analyze the CSRR array structure to reduce the antenna RCS. The left-handed material are simple prospect of application in the future. Also has a very broad application prospects of the metamaterial left-handed materials, including. Metamaterial in physics, material science, medical imaging, radio astronomy, broadband and secure communication, especially with great prospect in application of satellite communication.