Research On RFID Tag Antenna Radiation Characteristics Of Communication In UHF Frequency

With the rapid development of networking systems, as the core technology ofthe Internet of Things RFID systems have been widely used in various aspects ofpractical use. Radio frequency identification devices are more and more applications,identification tag environment gradually become diversified and complex.This paper first reviews the development and widespread application casesRFID systems. Then the article describes the classification of the tag antenna, andpackaging technology, and for the common forms of packaging and packagingtechnology affect tag performance on in-depth analysis. Then in the generalenvironment for the labels used to analyze the effect of ambient temperature, airhumidity on the tag antenna work. Finally, the theoretical derivation of the wayenvironmental parameters corresponding electromagnetic technology parameters,and then simulate achieved through software emulation form.In practice, there are a lot of labels to work in an outdoor environment. Thispaper analyzed for field environments tag antenna, considering its impact on theenvironment arising from the different. Outside the field of environment, there aremany factors to consider, such as rain, ice, snow, and air suspension etc. affect cloudtag antenna and electromagnetic wave propagation. Analytical methods used in thispaper is mainly theoretical derivation of the way through the calculated attenuationof ambient electromagnetic waves. With the decrease of the ambient temperature,water vapor in the air condenses on the surface of such an antenna, the antennaperformance and the impact of electromagnetic radiation. In this paper, the impactof the antenna surface condensation antenna for in-depth research. Use of softwaremodeling and simulation of the way, can be more intuitive, more accurate andsystematic derivation of conclusions drawn.UHF band RFID tags used in a variety of systems in the logistics industry,many of whom have applied the label metal environment. In this paper, the influenceof the metal on the label of a theoretical analysis, and outlines several types ofcurrently used anti-metal tag, and make a comparison. Finally, the influence of thebody on the label. First established in the analysis of human hierarchical model fordifferent organizational structures set up under the corresponding frequencyelectromagnetic parameters. Then study the impact of humans on the tag antennaand electromagnetic radiation simulation approach.This paper analyzes the influence of UHF band RFID tag environment of thelabel. Theoretical analysis of the text of the tag antenna design has some guidanceand reference value.