本文選題：圓極化 + 寬波束��； 參考：《東南大學(xué)》2017年碩士論文

【摘要】：在衛(wèi)星通信、導(dǎo)航、雷達(dá)等通訊系統(tǒng)中,線(xiàn)極化天線(xiàn)難以滿(mǎn)足愈發(fā)嚴(yán)格的要求,而圓極化天線(xiàn)具有低極化損耗、抗多徑干擾等眾多的優(yōu)點(diǎn),因此圓極化天線(xiàn)得到了越來(lái)越普遍的應(yīng)用。其中衛(wèi)星通信系統(tǒng)在近二十年來(lái)發(fā)展迅速,對(duì)圓極化天線(xiàn)的性能也提出了更加嚴(yán)格的要求。本文以國(guó)家自然科學(xué)基金項(xiàng)目"立體多面圓極化天線(xiàn)"為背景,仿真研究了新型的單饋和雙饋的立體多面圓極化天線(xiàn)。本文的主要貢獻(xiàn)點(diǎn)不僅包括了可以指導(dǎo)新型圓極化天線(xiàn)設(shè)計(jì)的理論分析和設(shè)計(jì)方法,還提供了一款具有實(shí)用價(jià)值的寬波束圓極化天線(xiàn)。本文的主要工作是:1)分析解明影響圓極化天線(xiàn)軸比波束寬度的因素。通過(guò)理論分析與仿真計(jì)算驗(yàn)證相結(jié)合的方法,分別分析了天線(xiàn)的主向軸比和寬角度軸比的變化機(jī)制;導(dǎo)出了圓極化的兩個(gè)正交極化分量之間的幅度誤差和相位誤差對(duì)軸比影響的公式;仿真分析了天線(xiàn)軸比波束寬度與天線(xiàn)結(jié)構(gòu)尺寸和基板材料的關(guān)系,得出了一系列可以指導(dǎo)圓極化天線(xiàn)設(shè)計(jì)的結(jié)論。2)提出了一種單饋點(diǎn)立體翻折圓極化天線(xiàn)結(jié)構(gòu),該天線(xiàn)通過(guò)貼片翻折來(lái)保證優(yōu)良的半功率波束寬度和3 dB軸比波束寬度;分析了貼片翻折與天線(xiàn)波束寬度的關(guān)系;給出了單饋點(diǎn)立體翻折圓極化天線(xiàn)的設(shè)計(jì)步驟;仿真結(jié)果顯示該天線(xiàn)的半功率波束寬度達(dá)到110°、3 dB軸比波束寬度達(dá)到200°以上;測(cè)試結(jié)果與仿真結(jié)果基本吻合,驗(yàn)證了仿真工作的可靠性。本文的研究工作為設(shè)計(jì)寬軸比波束的圓極化天線(xiàn)提供了新的技術(shù)途徑,有助于新型立體多面圓極化天線(xiàn)的研制。
[Abstract]:In satellite communication, navigation, radar and other communication systems, linear polarization antenna is difficult to meet the increasingly stringent requirements, while circular polarization antenna has many advantages, such as low polarization loss, anti-multipath interference and so on.Therefore, circular polarization antenna has been more and more widely used.The satellite communication system has developed rapidly in the past twenty years, and the performance of circularly polarized antenna is required more strictly.In this paper, based on the project of National Natural Science Foundation of China, "Three-Dimensional Multiplanar Circular polarization Antenna", a new type of single-fed and double-fed stereoscopic multiplanar circularly polarized antenna is simulated and studied.The main contributions of this paper include not only the theoretical analysis and design methods which can guide the design of the new circular polarization antenna, but also a wide beam circular polarization antenna with practical value.The main work of this paper is to analyze the factors that affect the beam width of circular polarization antenna.The main axis ratio and the wide angle axial ratio of the antenna are analyzed by combining the theoretical analysis with the simulation calculation.The effects of amplitude error and phase error on axial ratio between two quadrature polarization components of circular polarization are derived, and the relationship between antenna axial ratio beam width and antenna structure size and substrate material is simulated and analyzed.A series of conclusions which can guide the design of circular polarization antenna are obtained. (2) A single feed point stereoscopic folded circular polarization antenna structure is proposed, which can guarantee the excellent half-power beam width and 3dB axial ratio beam width by patch folding.The relationship between patch folding and antenna beam width is analyzed, the design steps of single feed point stereoscopic folded circular polarization antenna are given, and the simulation results show that the half-power beam width of the antenna reaches 110 擄/ 3 dB axis ratio beam width above 200 擄.The test results are in good agreement with the simulation results, and the reliability of the simulation work is verified.The research work in this paper provides a new technical approach for the design of circular polarization antenna with wide axial ratio beam, and is helpful to the development of a new stereoscopic multiplanar circular polarization antenna.
【學(xué)位授予單位】：東南大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TN821.1

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 黃培基;;解決電視接收困難的圓極化發(fā)射方法[J];廣播與電視技術(shù);1978年03期

2 何征宇;微波喇叭圓極化天線(xiàn)[J];遙測(cè)遙控;1994年03期

3 尚軍平;傅德民;蔣帥;鄧穎波;;圓極化天線(xiàn)特性參數(shù)測(cè)量方法[J];西安電子科技大學(xué)學(xué)報(bào);2009年01期

4 張暉;;圓極化天線(xiàn)綜述及在無(wú)線(xiàn)通信中的應(yīng)用(下)[J];家電檢修技術(shù);2009年17期

5 沈麗英，，卿顯明;微波電視高增益圓極化天線(xiàn)的設(shè)計(jì)[J];西部廣播電視;1995年06期

6 董曉娟,路志勇;機(jī)載全向圓極化天線(xiàn)[J];無(wú)線(xiàn)電工程;2004年04期

7 李現(xiàn)亭,齊文軍,白龍江,何其洪;圓極化天線(xiàn)在艦地圖像傳輸中的應(yīng)用[J];無(wú)線(xiàn)電工程;2004年06期

8 吳東;徐立勤;;基于坐標(biāo)轉(zhuǎn)換法研究三振子圓極化天線(xiàn)[J];通信技術(shù);2007年11期

9 張暉;;圓極化天線(xiàn)綜述及在無(wú)線(xiàn)通信中的應(yīng)用(上)[J];家電檢修技術(shù);2009年15期

10 高初;賴(lài)清華;陳明;;一種新型U頻段圓極化介質(zhì)棒天線(xiàn)[J];雷達(dá)與對(duì)抗;2013年01期

相關(guān)會(huì)議論文 前10條

1 王安娜;章文勛;;寬頻帶圓極化天線(xiàn)的優(yōu)化設(shè)計(jì)[A];2009年全國(guó)天線(xiàn)年會(huì)論文集（上）[C];2009年

2 項(xiàng)陽(yáng);錢(qián)祖平;王增和;;同相潰電十字振子圓極化天線(xiàn)的設(shè)計(jì)和分析[A];2005'全國(guó)微波毫米波會(huì)議論文集（第三冊(cè)）[C];2006年

3 洪萬(wàn)鑄;謝仲啟;吳旭升;蕭保成;林育德;;射頻辨識(shí)技術(shù)之圓極化讀碼天線(xiàn)設(shè)計(jì)[A];2005年海峽兩岸三地?zé)o線(xiàn)科技學(xué)術(shù)會(huì)論文集[C];2005年

4 潘超一;高X

本文編號(hào)：1731369