本文選題：北斗 + 微帶天線�。� 參考：《華東師范大學(xué)》2014年碩士論文

【摘要】：隨著全球各大導(dǎo)航系統(tǒng)的逐步完善,尤其是我國北斗導(dǎo)航系統(tǒng)(BeiDou)的快速發(fā)展,促使導(dǎo)航終端設(shè)備朝著小型化、低成本、多制式(即兼容多種制式導(dǎo)航信號)的趨勢發(fā)展。這就迫切需要具備以上特性的終端天線,來滿足終端設(shè)備的發(fā)展需求。微帶天線具有輪廓低、重量輕,容易實(shí)現(xiàn)加工制作和批量生產(chǎn)等優(yōu)點(diǎn),而且方便與其他系統(tǒng)相集成,這些特性使得微帶天線在衛(wèi)星導(dǎo)航終端領(lǐng)域得到了愈加廣泛的應(yīng)用。同時,這也對微帶天線在實(shí)現(xiàn)小型化、圓極化、兼容多種制式導(dǎo)航系統(tǒng)等方面,提出了更高的要求。 因此,研究和設(shè)計低輪廓、小型化的北斗導(dǎo)航系統(tǒng)多制式終端微帶天線(簡稱北斗多制式終端微帶天線)具有理論意義和實(shí)際應(yīng)用價值。本文主要工作內(nèi)容和創(chuàng)新如下： 1、對近些年來國外和國內(nèi)導(dǎo)航微帶天線的研究現(xiàn)狀進(jìn)行分析,對微帶天線實(shí)現(xiàn)圓極化、小型化、多制式等不同技術(shù)進(jìn)行分類和比較。再結(jié)合相關(guān)理論和技術(shù),得到本文設(shè)計北斗多制式終端微帶天線的方法。 2、研究并設(shè)計了一款單端口饋電、方形輻射貼片的北斗多制式終端微帶天線。這款天線由兩層方形貼片堆疊而成,具有兼容多個導(dǎo)航系統(tǒng)信號的多制式功能。創(chuàng)新：分別利用條形縫隙和枝型縫隙實(shí)現(xiàn)下層貼片和上層貼片的右旋圓極化RHCP(Right-Handed Circular Polarization)輻射,并應(yīng)用電抗性金屬面RIS(Reactive Impedance Surface)結(jié)構(gòu)實(shí)現(xiàn)天線良好的增益和軸比性能。 3、研究并設(shè)計了一款單端口饋電、圓形輻射貼片、加載調(diào)諧枝節(jié)和縫隙的北斗多制式終端微帶天線。這款天線由輪廓相同的兩層圓形貼片堆疊而成來實(shí)現(xiàn)多制式功能,均采用對稱式縫隙和調(diào)諧枝節(jié)實(shí)現(xiàn)天線RHCP輻射。創(chuàng)新：利用開口諧振環(huán)SRR(Split Ring Resonators)縫隙結(jié)構(gòu)和RIS實(shí)現(xiàn)天線良好的軸比、增益和小型化等性能。 4、研究并設(shè)計了一款單端口饋電、圓形輻射貼片、加載非對稱縫隙的北斗多制式終端微帶天線。這款天線采用兩對非對稱縫隙實(shí)現(xiàn)天線的RHCP輻射。創(chuàng)新：提出具有非對稱縫隙結(jié)構(gòu)的圓形貼片可以實(shí)現(xiàn)天線RHCP,利用SRR縫隙和RIS實(shí)現(xiàn)天線良好的軸比、增益和小型化等性能。 這些天線除了能夠工作于我國的BeiDou衛(wèi)星導(dǎo)航系統(tǒng)終端中,還可以應(yīng)用于美國的GPS、歐洲的Galileo等全球衛(wèi)星導(dǎo)航系統(tǒng)終端設(shè)備中。 5、結(jié)合本文的研究情況和設(shè)計成果,對文中北斗多制式終端微帶天線設(shè)計的優(yōu)缺點(diǎn)進(jìn)行分析,對存在的問題進(jìn)行說明,并對有可能的改進(jìn)方法和研究方向做出展望,從而對下一步的研究工作有所幫助。
[Abstract]:With the gradual improvement of the global navigation systems, especially the rapid development of the Beidou navigation system (BeiDou) in our country, the trend of navigation terminal equipment is developing towards miniaturization, low cost and multi mode navigation signal, which requires the terminal antenna with the above features urgently to meet the development of terminal equipment. Microstrip antenna has the advantages of low profile, light weight, easy realization of processing and mass production, and easy to integrate with other systems. These features make microstrip antenna widely used in the field of satellite navigation terminal. At the same time, the microstrip antenna is miniaturized, circular polarization and compatible with various types of navigation. Higher requirements are put forward in the system and so on.
Therefore, the research and design of the low profile and miniaturized Beidou navigation system multimode terminal microstrip antenna (abbreviated as the Beidou multimode terminal microstrip antenna) has theoretical significance and practical application value. The main work content and innovation of this paper are as follows:
1, this paper analyzes the research status of the microstrip antennas abroad and at home in recent years, and classifies and compares the various technologies such as circular polarization, miniaturization and multi production of microstrip antennas. Combined with the related theories and techniques, the method of designing the microstrip sky line of the Beidou multi mode terminal is obtained.
2, we have studied and designed a single port feed, square radiation patch, Beidou multimode terminal microstrip antenna. This antenna is stacked with two layers of square patches and has a multi mode function compatible with multiple navigation system signals. Innovation: using strip crevice and branch slot to show the right circular polarization RH of the lower layer patch and the upper layer respectively. CP (Right-Handed Circular Polarization) radiation, and the application of electrically resistant metal surface RIS (Reactive Impedance Surface) structure to achieve good antenna gain and axial ratio performance.
3, we have studied and designed a single port feed, circular radiant patch, and a Beidou multimode terminal microstrip antenna with a tuning branch and a slot. This antenna is stacked with two layers of circular patches with the same outline to realize multi mode function. The antenna RHCP radiation is realized by symmetrical slot and tuning branch. Innovation: opening resonance Ring SRR (Split Ring Resonators) slot structure and RIS achieve good antenna axial ratio, gain and miniaturization performance.
4, we have studied and designed a single port feed, circular radiant patch, and a Beidou multimode terminal microstrip antenna with asymmetrical slot. This antenna uses two pairs of asymmetrical slot to realize the antenna's RHCP radiation. Innovation: a circular patch with asymmetrical slot structure can be used to realize antenna RHCP, using SRR crevice and RIS to realize antenna Good axial ratio, gain and miniaturization.
In addition to working in our country's BeiDou satellite navigation system terminal, these antennas can also be used in the United States' GPS, European Galileo and other global satellite navigation system terminals.
5, based on the research and design results of this paper, the advantages and disadvantages of the design of the Beidou multi terminal microstrip antenna are analyzed, the existing problems are explained, and the possible improvement methods and research directions are prospected, so as to help the next research work.

【學(xué)位授予單位】：華東師范大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TN96.1

【共引文獻(xiàn)】

相關(guān)期刊論文 前10條

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本文編號：1866976