發(fā)布時(shí)間：2018-04-19 11:03

  本文選題：無線充電 + 整流天線　； 參考：《中國(guó)礦業(yè)大學(xué)》2014年碩士論文

【摘要】：目前有線供電是廣泛應(yīng)用的供電方式，隨著科技進(jìn)步有線供電已經(jīng)無法全面滿足應(yīng)用需求，因微波無線充電擺脫了有線供電中導(dǎo)線拖拉纏繞限制，大大提高了充電的靈活性。隨著物聯(lián)網(wǎng)技術(shù)的發(fā)展，煤礦井下無線傳感器的使用日益增多，為提高無線傳感器的生命周期，同時(shí)免去為動(dòng)則為上千個(gè)無線傳感器更換電池的不便，，可采用微波無線充電的方式為傳感器補(bǔ)充電能。本文在分析微波無線充電的發(fā)展?fàn)顩r之后詳細(xì)研究了微波無線充電中接收端的分析、設(shè)計(jì)和測(cè)試方法。 首先，本文介紹了微波無線充電的發(fā)展概況及相關(guān)的基礎(chǔ)知識(shí)，闡述了其接收端的組成構(gòu)成，鑒于微帶結(jié)構(gòu)緊湊的優(yōu)點(diǎn)接收端整體采用微帶結(jié)構(gòu)。其次詳細(xì)介紹了微帶天線的設(shè)計(jì)方法與仿真手段，為克服天線仿真結(jié)果和實(shí)際制作時(shí)的偏差，提出了一種有效的頻偏校正方法，成功設(shè)計(jì)了工作在5.8GHz的微帶天線，并通過實(shí)測(cè)驗(yàn)證了頻偏校正方法的可行性。接著介紹了微帶濾波器和二倍壓整流電路的分析設(shè)計(jì)方法，提出了準(zhǔn)確測(cè)量大功率條件下整流電路輸入阻抗的模型并分析了誤差來源，給出了能夠進(jìn)行準(zhǔn)確測(cè)量的條件，同時(shí)提出了一種低成本的去嵌入阻抗測(cè)量方法。隨后根據(jù)阻抗測(cè)量結(jié)果設(shè)計(jì)了阻抗匹配環(huán)節(jié)，阻抗測(cè)量的準(zhǔn)確度是阻抗匹配基礎(chǔ)，阻抗匹配電路的成功設(shè)計(jì)也印證了整流電路輸入阻抗模型和去嵌入阻抗測(cè)量方法的準(zhǔn)確性。最終將各部分集成，制作實(shí)際的微波無線充電接收端，實(shí)測(cè)結(jié)果表明該接收端適合為低功耗功耗設(shè)備提供無線充電。
[Abstract]:Wire power supply is a widely used power supply mode. With the development of science and technology, wire power supply has been unable to fully meet the needs of the application, because microwave wireless charging gets rid of the limitation of wire dragging and winding in wired power supply, and greatly improves the flexibility of charging.With the development of the Internet of things technology, the use of wireless sensors in underground coal mines is increasing day by day. In order to improve the life cycle of wireless sensors and avoid the inconvenience of replacing batteries for thousands of wireless sensors,Microwave wireless charging can be used to replenish the electric energy for the sensor.After analyzing the development of microwave wireless charging, this paper studies in detail the analysis, design and test methods of the receiver in microwave wireless charging.Firstly, this paper introduces the development of microwave wireless charging and related basic knowledge, and describes the composition of the receiver. In view of the advantages of compact microstrip structure, the whole receiver adopts microstrip structure.Secondly, the design method and simulation method of microstrip antenna are introduced in detail. In order to overcome the deviation between simulation results and actual fabrication, an effective frequency offset correction method is proposed, and the microstrip antenna working in 5.8GHz is designed successfully.The feasibility of the frequency offset correction method is verified by actual measurement.Then, the analysis and design methods of microstrip filter and double voltage rectifier circuit are introduced, the model of accurate measurement of input impedance of rectifier circuit under high power condition is put forward, the error source is analyzed, and the conditions for accurate measurement are given.At the same time, a low cost de-embedding impedance measurement method is proposed.Then the impedance matching link is designed according to the results of impedance measurement. The accuracy of impedance measurement is the basis of impedance matching. The successful design of impedance matching circuit also verifies the accuracy of the input impedance model of rectifier circuit and the method of de-embedding impedance measurement.Finally, every part is integrated to make the actual microwave wireless charging receiver. The experimental results show that the receiver is suitable for wireless charging of low power consumption devices.
【學(xué)位授予單位】：中國(guó)礦業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN822


本文編號(hào)：1772825