本文關(guān)鍵詞： 寬帶天線 全向天線 低剖面天線 雙極化天線 移動通信天線 單極子天線　出處：《哈爾濱工業(yè)大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：伴隨著移動通信技術(shù)的不斷發(fā)展,各種通信設(shè)備不斷增多,人們對天線的需求也不斷增高。為了減少整個通信系統(tǒng)的復(fù)雜度,縮小通信設(shè)備的體積與重量,提高設(shè)備的便攜性,常常需要一個天線同時滿足多個通信設(shè)備的工作,這就要求天線具有比較寬的工作帶寬,以覆蓋各個通信設(shè)備的工作頻帶。除了帶寬要求外,在一些通信系統(tǒng)中,還需要天線具有低剖面、小型化等特性,以滿足安裝環(huán)境的要求。針對目前市場上對寬帶、低剖面、高增益、全向天線的需求,本文主要完成了以下研究工作:(1)設(shè)計了一種寬帶低剖面垂直極化全向天線,該天線在1710 MHz-2690 MHz頻帶內(nèi)VSWR小于2.0,增益大于4 d B,不圓度小于1 d B,極化方向尺寸小于20 mm;(2)設(shè)計了一種寬帶低剖面水平極化全向天線,該天線在1710 MHz-2690 MHz頻帶內(nèi)VSWR小于2.0,增益大于1 d B,不圓度小于3 d B,天線剖面高度尺寸小于2 mm;(3)設(shè)計了一種寬帶低剖面雙極化全向天線,該天線在1710 MHz-2690 MHz頻帶內(nèi),垂直極化和水平極化端口VSWR都小于2.0,垂直極化增益大于4 d B,水平極化增益大于2 d B,垂直極化和水平極化不圓度小于3 d B,兩端口隔離度大于30 d B,整個天線的剖面縱向尺寸小于80 mm;(4)設(shè)計了一種寬帶高增益雙極化全向天線,該天線在1710MHz-2690 MHz頻帶內(nèi),垂直極化和水平極化端口VSWR小于2.0,垂直極化增益大于8 d B,水平極化增益大于7 d B,垂直極化和水平極化不圓度小于3 d B,兩端口隔離度大于30 d B。上述天線均使用CST Microwave Studio?電磁仿真軟件進(jìn)行建模、仿真和優(yōu)化,本文還對天線進(jìn)行實物加工和測試,測試結(jié)果表明,以上幾種天線的實驗結(jié)果和仿真結(jié)果吻合得很好,都能夠滿足指標(biāo)要求。此外,本論文還對所設(shè)計天線進(jìn)行了理論分析,詳細(xì)描述了天線的工作原理以及設(shè)計方法。本文所設(shè)計的天線具有寬帶、低剖面、高增益和全向等特點,能夠廣泛應(yīng)用于移動通信設(shè)備中。
[Abstract]:With the continuous development of mobile communication technology, various communication devices are increasing, and the demand for antenna is also increasing. In order to reduce the complexity of the whole communication system, reduce the volume and weight of the communication equipment, improve the portability of the equipment. One antenna is often required to work with multiple communication devices at the same time, which requires the antenna to have a wide working bandwidth to cover the operating bands of each communication device. In addition to bandwidth requirements, in some communication systems, The antenna also needs to have low profile, miniaturization and other characteristics to meet the requirements of the installation environment. In view of the current market demand for broadband, low profile, high gain, omnidirectional antenna, In this paper, the following research work has been done: (1) A wide band low profile vertical polarization omnidirectional antenna is designed. A wide band low profile horizontal polarization omnidirectional antenna is designed in the 1710 MHz-2690 MHz band with VSWR less than 2.0, gain greater than 4 dB, non-roundness less than 1 dB, and polarization direction size less than 20 mm / 2. In the 1710 MHz-2690 MHz band, the VSWR is less than 2.0, the gain is greater than 1 dB, the non-roundness is less than 3 dB, and the height of the antenna section is less than 2 mm-1 / 3) A wide band low profile dual-polarization omnidirectional antenna is designed. The antenna is in the 1710 MHz-2690 MHz band. The vertical polarization and horizontal polarization VSWR are less than 2.0, the vertical polarization gain is more than 4 dB, the horizontal polarization gain is more than 2 dB, the vertical and horizontal polarization is less than 3 dB, the isolation of two ports is more than 30 dB. A wide band and high gain dual polarization omnidirectional antenna is designed. The antenna is in the 1710MHz-2690 MHz band. The vertical and horizontal polarization port VSWR is less than 2.0, the vertical polarization gain is more than 8 dB, the horizontal polarization gain is more than 7 dB, the vertical polarization and horizontal polarization is less than 3 dB, the isolation of two ports is more than 30 dB. The electromagnetic simulation software is used to model, simulate and optimize the antenna. The test results show that the experimental results are in good agreement with the simulation results and can meet the requirements. In this paper, the antenna is analyzed in theory, and its working principle and design method are described in detail. The antenna designed in this paper has the characteristics of wide band, low profile, high gain and omnidirectional. It can be widely used in mobile communication equipment.
【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TN828.6

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本文編號：1536785