On Some Issues Of The Mobile Phone And Base Station Electromagnetic Radiation Analysis

In recent years, with the rapid development of the telecommunications industry and mobile communications, the luxury phone in the past has been become mass consumer goods. As of the end of June2012, the number of mobile phone users in China has reached1.052billion. It’s expected that in the end of2012the number of users is expected to exceed1.1billion. Along with the increase in the number of users, the major domestic operators constantly improve the network coverage of the mobile phone base stations. Especially in recent years,3G, as well as the promotion of the upcoming commercial LTE network, the construction of base stations set off a new round of high tide. Therefore, the attention of the people on the mobile phone and base station electromagnetic radiation on human health is also increasing.The impact of electromagnetic radiation on the human body is a wide range of topic, the problem needs to be comprehensive and cross-use of the electromagnetic field theory, electromagnetic boundary value problem, biomedical, and antenna theory of knowledge. Thus, electromagnetic radiation interacts with the human body is a complex process. At the same time, studies the impact of the mobile phones of people head will have important practical significance and broad application prospects. First, by predicting the mobile phone the electromagnetic radiation doses on the human body, with a variety of electromagnetic radiation hygiene standards directly compare, provide the basis for the evaluation of current mobile phone radiation is in line with the existing health standards, in line with China’s actual radiation hygiene standards to establish provide valuable information data; Second, we can provide the location and distribution of the theoretical results, the best way to find phone operating mobile phone radiation by the greatest harm to the human body, reduce the damage to mobile phone radiation on the human body; Finally, through the head of the mobile phone direction diagrams of direction can be provided for the new phone.Content and results of this research are as follows:(1) On the basis of a lot of reading related literature, the research background of mobile phone electromagnetic radiation and generally used SAR standard were summarized. On this basis, the research idea that mainly experimental measurements and supplemented by simulation was proposed. (2) The theoretical knowledge related to the topic was described, including the principle of electromagnetic radiation, Bioelectromagnetics, biological effects of electromagnetism and bio-electromagnetic dosimetry amount of SAR.(3) Finite element method which related to this article simulation was highlighted, including the development of the finite element method, the basic principle, derivation of equations, adaptive split of the grid and the introduction of electromagnetic simulation software HFSS based on the finite element method, after briefly introducing commonly used electromagnetic simulation algorithm.(4) The measurement of the head and body parts of the phone SAR was finished by utilizing the laboratory equipment DASY5. And according to the measurement results and analysis of the part of the body, the part of the body when using a mobile phone, reduce cell phone radiation, try to use a wired headset, and try not to use hands-free this view.(5) The models of cell phone shell, a dual-band PIFA and human head were established by using HFSS based on the finite element method. Interaction on the phone with the head of the simulation and experimental comparison. Finally, to reduce mobile phone electromagnetic radiation, artificially reduced and technology improvements were proposed.