| 一种新型类Vicsek分形多频天线的设计 |
| |
| 引用本文： | 胡章芳,辛伟,罗元,胡银平,严凤莉. 一种新型类Vicsek分形多频天线的设计[J]. 电波科学学报, 2016, 31(4): 760-765. DOI: 10.13443/j.cjors.2015090501 |
| |
| 作者姓名： | 胡章芳 辛伟 罗元 胡银平 严凤莉 |
| |
| 作者单位： | 重庆邮电大学光电工程学院, 重庆 400065 |
| |
| 基金项目： | 重庆市“121”科技支撑示范工程项目(重庆光电产业科技支撑示范工程协同管理创新与应用研究 |
| |
| 摘 要： | 在Vicsek结构的分形理论基础上进行了改进, 提出了一种具有良好空间填充性和自相似特性的新型类Vicsek分形天线, 并在接地板上引入缺陷地结构(Defected Ground Structure, DGS)来改善频率、抑制谐波, 得到了可以运用在无线局域网(Wireless Local Area Networks, WLAN)、全球微波互联接入(Worldwide Interoperability For Microwave Access, WiMAX)以及C波段卫星通信的四个频段.天线的谐振频率分别为2.45 GHz、3.46 GHz、5.8 GHz和7 GHz, 相应带宽为0.2 GHz(2.37~2.57 GHz)、0.49 GHz(3.2~3.69 GHz)、0.75 GHz (5.52~6.27 GHz)和0.56 GHz(6.68~7.24 GHz), 增益最高达到4.89 dB.天线的小尺寸及全向性辐射特性表明该天线能很好地满足便携式多频段移动设备的要求.
|
| 关 键 词： | 类Vicsek分形 多频段 缺陷地 微带天线 |
| 收稿时间： | 2015-09-05 |
Design of a new Vicsek-like fractal multi-frequency antenna |
| |
| Affiliation: | Institute of Photoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China |
| |
| Abstract: | Based on the fractal theory of Vicsek structure, a new Vicsek-like fractal antenna with good space filling property and self-similarity property is proposed, and the defected ground structure (DGS) is introduced on its ground plate to improve the frequency and suppress the harmonics, which makes it a better candidate for applications of WLAN, WiMAX and C band satellite communication systems. It provides four impedance bandwidths of 0.2 GHz, 0.49 GHz, 0.75 GHz and 0.56 GHz for the working bands of 2.37-2.57 GHz centered at 2.45 GHz, 3.2-3.69 GHz centered at 3.46 GHz, 5.52-6.27 GHz centered at 5.8 GHz and 6.68-7.24 GHz centered at 7 GHz, respectively. Furthermore, the 4.89 dB of relative high gain is achieved. The small size and omnidirectional radiation characteristics of the antenna show that it can meet the requirements of portable multiband mobile devices. |
| |
| Keywords: | Vicsek-like fractal multi-frequency defected ground structure microstrip antenna |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《电波科学学报》浏览原始摘要信息 |
|
点击此处可从《电波科学学报》下载免费的PDF全文 |
|
