本文關(guān)鍵詞：L波段單脈沖天線陣列設(shè)計(jì)與研究　出處：《合肥工業(yè)大學(xué)》2016年碩士論文　論文類(lèi)型：學(xué)位論文

  更多相關(guān)文章： L波段 單脈沖 天線陣列 環(huán)形電橋 和差網(wǎng)絡(luò)

【摘要】：隨著單脈沖天線各種新技術(shù)的涌現(xiàn),單脈沖天線的形式越來(lái)越多樣化。因此對(duì)于單脈沖天線及其饋電網(wǎng)絡(luò)的研究顯得尤為重要。本文根據(jù)微帶縫隙耦合天線及天線陣列理論,設(shè)計(jì)了兩款L波段的單脈沖天線陣列。本文首先采用微帶縫隙耦合天線作為天線單元,組成了4x4的天線陣列,并且根據(jù)Gysel功分器拓?fù)浣Y(jié)構(gòu)改進(jìn)的新型環(huán)形電橋作為和差網(wǎng)絡(luò)。接著設(shè)計(jì)了一款一維L波段的單脈沖天線陣列,并且為了克服互耦帶來(lái)的負(fù)面影響,減小各天線單元間的互耦作用,本文對(duì)此問(wèn)題進(jìn)行了著重研究與分析。在上述工作的基礎(chǔ)上,為了克服一維單脈沖天線的不足,又對(duì)饋電網(wǎng)絡(luò)進(jìn)行了改進(jìn)。利用三分支微帶耦合器和90°移相器構(gòu)成了一個(gè)十字形微帶和差器,以此來(lái)做為單脈沖天線陣列的和差網(wǎng)絡(luò)。并設(shè)計(jì)了一款二維L波段的單脈沖天線陣列,該天線陣列能夠同時(shí)獲取方位信息和俯仰信息。在HFSS軟件仿真的結(jié)果表明,這兩款單脈沖天線的方向圖性能良好,和方向的最大增益均在16dB左右,差方向的最大增益都在13dB以上,零深也都優(yōu)于-30dB,各端口的駐波比在工作頻帶內(nèi)小于2,天線的各項(xiàng)指標(biāo)均滿足了設(shè)計(jì)要求。本文設(shè)計(jì)的這兩款單脈沖天線的饋電結(jié)構(gòu)與天線貼片置于同一平面中,所以該天線克服了傳統(tǒng)單脈沖天線的體積龐大,支撐結(jié)構(gòu)復(fù)雜等缺點(diǎn),更容易進(jìn)行系統(tǒng)和天線的集成,適應(yīng)了現(xiàn)代天線發(fā)展的需要。
[Abstract]:With the single pulse antenna all the emergence of new technology, single pulse antenna form more and more diverse. It is important to study the single pulse antenna and feed network. Based on the coupled microstrip slot antenna and antenna array theory, the two L band monopulse antenna array is designed. This paper adopts microstrip slot antenna coupling as the antenna unit, the antenna array of 4x4 components, and according to the new ring bridge topology Gysel power divider is improved as the sum and difference network. Then the design of single pulse antenna array is a one-dimensional L band, and in order to overcome the negative effects brought by mutual coupling, reducing the effect of mutual coupling between the antenna unit, for the study and analysis of this issue. Based on the above work, in order to overcome the shortcomings of mono pulse antenna, the feed network is improved by three. Microstrip coupler and 90 degrees phase shifter to form a cross shaped microstrip and difference, as a single pulse antenna array and difference network. And the design of the monopulse antenna array is a two-dimensional L band, the antenna array can also obtain azimuth information and elevation information. That in the simulation software of HFSS results the two single pulse antenna with good performance, the maximum gain and direction were about 16dB, the maximum gain difference direction is above 13dB, zero deep are better than those of -30dB, Bobbi in the port in the working frequency band is less than 2, the index of the antenna can meet the design requirements in this paper. The design of the two monopulse antenna feed structure and the patch of the antenna on the same plane, so the antenna overcomes the traditional monopulse antenna size, complexity of the supporting structure, more easily integrated system and antenna, It adapts to the needs of modern antenna development.

【學(xué)位授予單位】：合肥工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類(lèi)號(hào)】：TN820.15

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