本文選題：毫米波陣列天線　切入點(diǎn)：微帶天線　出處：《哈爾濱工程大學(xué)》2014年碩士論文

【摘要】：近幾年,隨著無線通信事業(yè)的大力發(fā)展及通信容量的增加,使天線的頻段逐漸由低頻段發(fā)展到高頻段。目前國際上大多數(shù)頻段的使用范圍為Ku, K, Ka頻段,但是也越來越擁擠。故開發(fā)利用毫米波及亞毫米波頻段成為一種必然,而該波段的天線設(shè)計(jì)也是天線發(fā)展的必然趨勢。高度集成化的數(shù)字技術(shù)使得T/R組件的小型化及數(shù)字化已經(jīng)成為現(xiàn)實(shí),故使得基于T/R組件的固態(tài)有源相控陣天線的應(yīng)用范圍越來越廣。除為了考慮成本外,目前世界上的最先進(jìn)戰(zhàn)機(jī)均采用固態(tài)有源相控陣天線的形式,而且星載天線也漸漸采用有源相控陣形式。故毫米波段的固態(tài)有源相控陣天線單元及陣列的設(shè)計(jì)與研究將成為陣列天線發(fā)展的一種趨勢。論文所做的工作內(nèi)容如下:1.介紹了微帶線和微帶天線的理論基本知識,以及用于研究與解析微帶天線原理的三種基本理論方法,且簡介能夠使微帶貼片天線展寬頻帶,達(dá)到實(shí)現(xiàn)多頻化和圓極化的具體可實(shí)施的方法。2.介紹了陣列天線單元組成的線陣和面陣的帶寬、方向圖、波束寬度等基本理論常識以及面陣中單元間距的選擇和陣列中單元間的互耦效應(yīng)。3.設(shè)計(jì)了三款可用于毫米波段的陣列微帶貼片天線單元:(1)中心頻率為60GHz的可降互耦的新型饋電方式的陣列微帶貼片天線單元;(2)寬帶高增益探針與貼片相切饋電方式的陣列天線單元;(3)Ka波段的寬帶高增益陣列天線單元,且對前兩款天線組成的4×4陣列進(jìn)行了仿真。4.分析了探針與貼片相切的這種新型饋電方式的結(jié)構(gòu)特點(diǎn),通過對多種不同饋電結(jié)構(gòu)的仿真,總結(jié)出此結(jié)構(gòu)的數(shù)學(xué)公式,給出了此結(jié)構(gòu)的理論公式計(jì)算方法。
[Abstract]:In recent years, with the development of wireless communication industry and the increase of communication capacity, the frequency band of antenna has gradually developed from low frequency band to high frequency band. But it is also becoming more and more crowded. Therefore, the development and utilization of millimeter-wave and sub-millimeter-wave frequency bands has become a necessity. The antenna design of this band is also an inevitable trend of antenna development. The highly integrated digital technology has made the miniaturization and digitization of the T / R component a reality. Therefore, the application of solid-state active phased array antenna based on T / R component is becoming wider and wider. In addition to considering the cost, the most advanced fighter planes in the world at present adopt the form of solid-state active phased array antenna. The design and research of solid state active phased array antenna unit and array in millimeter band will become a trend of array antenna development. The work done in this paper is as follows. The basic theory of microstrip line and microstrip antenna is introduced. And three basic theories and methods used to study and analyze the principle of microstrip antenna are also introduced, which can make the microstrip patch antenna widen the frequency band. The practical method of realizing multi-frequency and circular polarization. 2. The bandwidth and pattern of linear array and plane array composed of array antenna elements are introduced. Basic theories such as beam width, selection of cell spacing in array and mutual coupling effect between elements in array. 3. Three microstrip patch antenna elements: 1: 1, which can be used in millimeter band, are designed to reduce the center frequency of 60GHz. Wideband high gain probe and chip tangent feed mode array antenna unit / 3ka-band wideband high gain array antenna unit, The 4 脳 4 array composed of the first two antennas is simulated. 4. The structural characteristics of the new feed mode, which is tangent to the probe and the patch, are analyzed, and the mathematical formulas of the structure are summed up through the simulation of many different feed structures. The calculation method of theoretical formula of this structure is given.
【學(xué)位授予單位】：哈爾濱工程大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TN822

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