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Mobile Communication Terminal Design and Emc Analysis

Author: SunPengPeng
Tutor: ZhangZhiWei
School: Qingdao Technological University
Course: Communication and Information System
Keywords: GSM Terminal MATLAB HFSS System
CLC: TN929.53
Type: Master's thesis
Year: 2010
Downloads: 107
Quote: 0
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Abstract


The 21st century is an era of information technology, handheld mobile communication terminal to become the world's fastest-growing communications products. With the development of mobile communication technology and 3G applications, handheld mobile communication terminal huge boost overall system capacity, which means that hand-held mobile communication terminal in the next life will play a more important role. Accompanied by a hand-held mobile communication terminal function more powerful, it is also more complex electronic circuits, integrated circuits and components are increasingly high-density, high technical performance requirements are also increasing, which designs for EMC put forward higher requirements, but a good electronic products in addition to the product itself functions, electromagnetic compatibility design level of technology, product quality and technical performance indicators play a very crucial role in the design of a system so EMC plays a vital role. Simulation of great significance for Communications Research, through the simulation we can get a lot of reality can not measure the results, to facilitate the study. And the simulation is testing a theory or a means of measuring the credibility of simulation and theoretical mutual authentication, is a good method of learning and research. This paper analyzes the characteristics of handheld mobile communication terminal and the working principle, according to the characteristics of handheld mobile communication terminal and system parameters are given a brief introduction to the use of simulation software. And then based on parameters required for the design of a handheld mobile communication terminal, and from the functional, compatibility and energy consumption of the three considerations. Functional design using impedance matching techniques to determine the design program to determine the program after the device according to the parameters required to calculate the value of the function in order to complete the design. Compatibility EMC standards based on the current design and combining handheld mobile communication terminal design features and then through the use of grounding, shielding and filtering technology to implement the design. Design for energy consumption is based on the latest standards for energy consumption to meet the functionality and compatibility on the basis of choosing the right chip. System design is complete is to use two MATLAB and HFSS simulation software to simulate and analyze the functional part of the circuit simulation is to use the MATLAB Simulink block library for modeling, parameter selection, and then get to run the simulation results, and through the analysis of simulation results circuit meets the parameters require further suggest improvements and improved. Part of the main antenna the antenna using HFSS modeling, adding radiation boundary, adding excitation source, adding sweep, and create reports and ultimately get the desired results of the simulation results and the simulation results of the antenna is a handheld mobile communication terminal in accordance with Antenna requirements to timely perfect. Finally, the hand-held mobile communication terminal related test, the test results are consistent with the parameters required, the error to within the required range. The design of a handheld mobile communication terminal for the designers should have some reference and application value.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Mobile Communications > Cellular mobile communications systems (mobile phones, mobile phone handsets )
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