本文選題：超寬帶 + 低剖面　； 參考：《南京航空航天大學(xué)》2017年碩士論文

【摘要】：近年來(lái),超寬帶天線(xiàn)陣受到了廣泛的關(guān)注。在通信、探測(cè)等軍民用領(lǐng)域,憑借其安全性、大帶寬、高傳輸速率、高分辨率等優(yōu)勢(shì)得到了廣泛的應(yīng)用。然而傳統(tǒng)的超寬帶天線(xiàn)陣往往體積龐大、造價(jià)昂貴,限制了它的進(jìn)一步發(fā)展。超寬帶緊耦合天線(xiàn)陣作為超寬帶天線(xiàn)陣的一員,在保持了良好的帶寬和掃描角性能的同時(shí),相較于傳統(tǒng)的超寬帶天線(xiàn)陣體積更小、剖面更低,擁有良好的前景。因此,本文對(duì)超寬帶緊耦合天線(xiàn)陣的設(shè)計(jì)以及進(jìn)一步降低其剖面的方法進(jìn)行了研究。論文的主要的研究工作包括如下幾個(gè)部分:1、研究了超寬帶緊耦合天線(xiàn)陣的工作原理以及等效電路模型,并提出了優(yōu)化等效電路模型的計(jì)算方法。利用全波仿真結(jié)合等效電路的模式,提高了等效電路參數(shù)的精度。實(shí)際算例結(jié)果表明,改進(jìn)的等效電路模型相較于傳統(tǒng)電路模型更加接近全波仿真的結(jié)果。2、設(shè)計(jì)了一款邊緣耦合型緊耦合天線(xiàn)陣。在設(shè)計(jì)過(guò)程中,重點(diǎn)研究了包含饋電結(jié)構(gòu)條件下的共模諧振問(wèn)題,分析了諧振成因,提出了“雙偶極子單元”的諧振解決方案。并設(shè)計(jì)了與之配套的巴倫以及功率分配器結(jié)構(gòu)。3、設(shè)計(jì)、制作并測(cè)試了一款層疊耦合型緊耦合天線(xiàn)陣。提出了基于輸入阻抗虛部的參數(shù)優(yōu)化方案,詳細(xì)介紹了測(cè)試過(guò)程并給出了緊耦合天線(xiàn)陣的測(cè)試結(jié)果。4、為了進(jìn)一步降低緊耦合天線(xiàn)陣的剖面,將人工磁導(dǎo)體結(jié)構(gòu)應(yīng)用到了緊耦合天線(xiàn)陣設(shè)計(jì)中。并設(shè)計(jì)了與之配套的完整饋電結(jié)構(gòu),解決了饋電帶來(lái)的諧振問(wèn)題,為進(jìn)一步的實(shí)物制作與測(cè)試打下了基礎(chǔ)。
[Abstract]:In recent years, UWB antenna array has received extensive attention. In the field of communication, detection and other military and civilian applications, it has been widely used because of its advantages of security, large bandwidth, high transmission rate and high resolution. However, the traditional UWB antenna array is often large in size and expensive in cost, which limits its further development. As a member of UWB antenna array, UWB tightly coupled antenna array has good bandwidth and scanning angle performance. Compared with traditional ultra-wideband antenna array, UWB antenna array has smaller volume, lower profile and better prospect. Therefore, the design of UWB coupled antenna array and the method of further reducing its profile are studied in this paper. The main research work of this paper includes the following parts: 1. The working principle and equivalent circuit model of UWB coupled antenna array are studied, and the calculation method of optimizing equivalent circuit model is proposed. The precision of equivalent circuit parameters is improved by full wave simulation combined with equivalent circuit mode. The results of practical examples show that the improved equivalent circuit model is closer to the full wave simulation result than the traditional circuit model, and a tightly coupled edge coupled antenna array is designed. In the design process, the common mode resonance problem with feed structure is studied, the cause of resonance is analyzed, and the resonant solution of "double dipole unit" is proposed. The matching structure of Barron and power divider. 3 is designed, and a stacked coupled tight coupled antenna array is designed, fabricated and tested. A parameter optimization scheme based on the imaginary part of input impedance is proposed. The test process is introduced in detail and the test results of tight coupled antenna array. 4. In order to further reduce the profile of tight coupled antenna array, The artificial magnetic conductor structure is applied to the design of tightly coupled antenna array. A complete feed structure is designed, which solves the resonance problem and lays a foundation for the further fabrication and testing.
【學(xué)位授予單位】：南京航空航天大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TN820.15

【參考文獻(xiàn)】

相關(guān)期刊論文 前4條

1 蘇子劍;梁昌洪;李龍;翟會(huì)清;;EBG高阻表面的準(zhǔn)靜態(tài)等效媒質(zhì)模型[J];西安電子科技大學(xué)學(xué)報(bào);2015年05期

2 張君;胡志慧;曲洪東;;一種新型超寬帶緊耦合天線(xiàn)陣列設(shè)計(jì)[J];海軍航空工程學(xué)院學(xué)報(bào);2014年02期

3 胡志慧;姜永華;凌祥;;基于電阻型頻率選擇表面的超寬帶緊耦合陣列[J];電波科學(xué)學(xué)報(bào);2013年06期

4 白劍林;陳亮;張平定;;反輻射導(dǎo)彈對(duì)抗技術(shù)研究[J];戰(zhàn)術(shù)導(dǎo)彈控制技術(shù);2007年01期

相關(guān)博士學(xué)位論文 前2條

1 楊琬琛;新型人工磁導(dǎo)體結(jié)構(gòu)特性研究及其在高性能天線(xiàn)中的應(yīng)用[D];南京理工大學(xué);2016年

2 楊利民;超寬帶雷達(dá)目標(biāo)探測(cè)技術(shù)研究[D];南京理工大學(xué);2012年

相關(guān)碩士學(xué)位論文 前4條

1 龔雪;寬帶相控陣天線(xiàn)小型化技術(shù)研究[D];電子科技大學(xué);2012年

2 鐘琳;寬帶開(kāi)槽天線(xiàn)陣列技術(shù)研究[D];電子科技大學(xué);2011年

3 李磊;基于雙平衡饋電結(jié)構(gòu)的強(qiáng)互耦寬帶相控陣研究[D];電子科技大學(xué);2010年

4 夏騰飛;基于互耦效應(yīng)的寬帶相控陣技術(shù)研究[D];電子科技大學(xué);2009年

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