本文選題：13.56MHZ　切入點(diǎn)：RFID　出處：《福建師范大學(xué)》2015年碩士論文

【摘要】：近年來,天線作為RFID (Radio Frequency Identification)系統(tǒng)的重要組成部件,在其中發(fā)揮著關(guān)鍵的作用。天線作為射頻識(shí)別系統(tǒng)的空中接口,是閱讀器與應(yīng)答器之間信息傳輸?shù)臉蛄?因此對(duì)RFID讀寫器天線的探究具有現(xiàn)實(shí)意義。RFID技術(shù)具有安全性能高、信息存儲(chǔ)量大等特點(diǎn),被視為條形碼最有潛力的替代品。物聯(lián)網(wǎng)的發(fā)展更是推動(dòng)了RFID技術(shù)的前進(jìn)。因此RFID天線成為各大高校及企業(yè)的研究熱點(diǎn)。由于實(shí)際環(huán)境的制約,天線小型化一直都是研究人員所關(guān)注的重點(diǎn)。而且迅猛發(fā)展的無線通信對(duì)天線的小型化提出了越來越高的要求。本論文主要研究在約束條件下對(duì)13.56MHz RFID讀寫器天線的仿真和設(shè)計(jì),對(duì)小型化讀寫器天線的高識(shí)別距離的優(yōu)化進(jìn)行了探究。分別研究在面積和周長(zhǎng)限定的情況下,不同的設(shè)計(jì)參數(shù)對(duì)天線線圈性能的影響,并通過三維電磁仿真軟件HFSS和MATLAB軟件的數(shù)字圖像處理功能來對(duì)比天線的磁場(chǎng)強(qiáng)度標(biāo)量圖,進(jìn)而判斷天線性能的優(yōu)劣。研究工作旨在找出在面積或周長(zhǎng)限定條件下,具有較好性能的天線線圈設(shè)計(jì)參數(shù)。本文使用HFSS軟件做了大量的仿真研究,優(yōu)選設(shè)計(jì)方案并實(shí)際制作天線進(jìn)行驗(yàn)證,實(shí)際測(cè)量情況與仿真結(jié)果相吻合,驗(yàn)證了仿真設(shè)計(jì)的準(zhǔn)確性。研究結(jié)果對(duì)RFID讀寫器天線的設(shè)計(jì)和生產(chǎn)具有一定的參考價(jià)值。
[Abstract]:In recent years, as an important component of RFID Radio Frequency Identification system, antenna plays a key role in it.As the air interface of RFID system, antenna is the bridge of information transmission between reader and transponder. Therefore, it is of practical significance to explore the antenna of RFID reader.It is regarded as the most potential substitute for bar code.The development of the Internet of things is to promote the progress of RFID technology.Therefore, RFID antenna has become a research hotspot in universities and enterprises.Antenna miniaturization has always been the focus of researchers due to the constraints of the actual environment.Moreover, the rapid development of wireless communication has put forward higher and higher requirements for antenna miniaturization.This paper mainly studies the simulation and design of 13.56MHz RFID reader antenna under the constraint conditions, and probes into the optimization of the high recognition distance of the miniaturized reader antenna.The effect of different design parameters on the performance of antenna coil is studied in the case of limited area and perimeter, and the magnetic field intensity scalar diagram of antenna is compared by the digital image processing function of 3D electromagnetic simulation software HFSS and MATLAB software.Then the antenna performance is judged.The purpose of this study is to find out the design parameters of antenna coil with better performance under the condition of limited area or circumference.In this paper, a large number of simulation studies have been done by using HFSS software, and the optimal design scheme has been selected and the antenna has been made for verification. The actual measurement results are in agreement with the simulation results, and the accuracy of the simulation design is verified.The research results have some reference value for the design and production of RFID reader antenna.
【學(xué)位授予單位】：福建師范大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TP391.44;TN820

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本文編號(hào)：1709626