本文選題：水平極化 + 全向天線　； 參考：《廈門大學》2014年碩士論文

【摘要】：隨著無線通信領域在生活中發(fā)揮著越來越重要的作用,天線作為無線通信系統(tǒng)的關鍵,負責發(fā)射和接收電磁波,直接關系到通信質(zhì)量的好壞,天線技術的指標要求越來越嚴格,基于無線通信的新需求以及其應用的背景,本文將對無線通信射頻識別車輛遠程監(jiān)控領域(UHF特高頻頻段)的全向水平極化天線的技術展開研究。本文的研究對全向水平極化天線的工程設計具有重要參考意義。本文主要內(nèi)容包括如下： 1.介紹了本文所展開工作的研究背景和意義,以及國內(nèi)外對此領域的研究動態(tài)和進展,概括了本文的主要工作和內(nèi)容安排。 2.介紹了天線中的重要參數(shù),并對用于產(chǎn)生水平極化的環(huán)形天線的原理進行全面的分析(分電流均勻分布和電流正弦分布兩種情況)。 3.詳細闡述了典型的愛福特Alford環(huán)形天線的基本輻射機理、設計思路以及應用場景,結合相關文獻設計了工作頻點為2.45GHZ的方形環(huán)模型,并分析了該平面全向水平極化天線的各個參數(shù)對天線電氣性能、輻射性能的影響,包括駐波比、諧振頻點和方位面的方向圖不圓度,在原有模型基礎上,提出了改善的方案,縮減天線的尺寸。 4.簡要介紹了業(yè)界常用的高頻仿真軟件以及天線加工與測試的設備,然后本文研制了一款平面全向水平極化天線,工作頻點為433.92MHz的方形雙層緊湊z字型車輛防盜電子鎖天線,在電磁場仿真軟件ANSYS HFSS中進行細致精準地仿真,并在其結果的基礎上,加工出實物。在微波暗室里實際測試了天線的電氣性能和輻射性能,并與仿真結果對比,能夠達到設計指標,最后探討分析了誤差產(chǎn)生的原因并提出解決方法,本文為此類天線相關的領域更深入的研究,積累了寶貴的工程經(jīng)驗。
[Abstract]:As the wireless communication field plays a more and more important role in daily life, as the key of wireless communication system, antenna is responsible for transmitting and receiving electromagnetic wave, which is directly related to the quality of communication. Based on the new requirements of wireless communication and the background of its application, this paper will study the omnidirectional horizontal polarization antenna in the field of wireless radio frequency identification vehicle remote monitoring and control (UHF UHF band). The research in this paper has important reference significance for the engineering design of omnidirectional horizontal polarization antenna. The main contents of this paper are as follows: 1. This paper introduces the research background and significance of the work carried out in this paper, as well as the research trends and progress in this field at home and abroad, and summarizes the main work and content arrangement of this paper. 2. The important parameters in the antenna are introduced and the principle of the annular antenna used to generate horizontal polarization is analyzed comprehensively (the uniform distribution of partial current and the sinusoidal distribution of current). 3. In this paper, the basic radiation mechanism, design idea and application scene of the typical Efft Alford ring antenna are described in detail. A square ring model with working frequency of 2.45GHZ is designed in combination with related literature. The effects of the parameters of the planar horizontal polarization antenna on the electrical and radiation performance of the antenna, including standing wave ratio, resonance frequency point and azimuth plane pattern, are analyzed. Based on the original model, an improved scheme is proposed. Reduce the size of the antenna. 4. This paper briefly introduces the high frequency simulation software and the equipment of antenna processing and testing, and then develops a plane omnidirectional horizontal polarization antenna with a square double layer compact z shaped electronic lock antenna with a working frequency of 433.92MHz. In the electromagnetic field simulation software ANSYS HFSS, the detailed and accurate simulation is carried out, and on the basis of the results, the material object is processed. The electrical performance and radiation performance of the antenna are tested in the microwave anechoic chamber, and compared with the simulation results, the design index can be reached. Finally, the causes of the errors are analyzed and the solutions are put forward. In this paper, valuable engineering experience has been accumulated for the further study of this kind of antenna.
【學位授予單位】：廈門大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TN821.1

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本文編號：1911842