基于缺陷接地结构的太赫兹双频微带天线

提出了一种工作在太赫兹频段的双频微带天线。在普通矩形微带天线的基础上，在辐射贴片上加载45°和135°的矩形贴片增大辐射面积，增大高频谐振点处阻抗带宽。通过引入缺陷接地结构使得天线在接地板处的电流路径改变，并与辐射贴片相互耦合，从而实现双频特性。为提高天线增益，在辐射贴片边缘加载若干寄生矩形贴片，并增加了寄生贴片处的基板厚度。该款天线可以同时在520 GHz(508~532 GHz)和680 GHz(581~766 GHz)的频段下工作，其中高频段的相对带宽达到了27.5%，最大增益达到了3.54 dB和4.11 dB。该双频天线结构相对简单，各项性能指标稳定，对于工作在太赫兹频段上的通信系统和无线传输系统具有一定的应用价值。

Abstract

A dual-band microstrip antenna operating in the terahertz band is proposed. Two rectangular patches are loaded at 45° and 135° on the antenna’s radiating patch to increase the radiation area and the impedance bandwidth at the high frequency resonance point. By introducing a defected ground structure(DGS), the current path of the antenna at the ground plate is changed and coupled with the radiation patch so as to realize dual frequency characteristics. In order to increase the gain of the antenna, several parasitic rectangular patches are loaded on the edge of the radiating patch. To further improve the antenna gain, the thickness of the substrate at the parasitic patch is increased, so that the antenna can simultaneously operate well at two bands, namely 520 GHz (508-532 GHz) and 680 GHz (581-766 GHz). The corresponding maximum gains are 3.54 dB and 4.11 dB respectively. One of the relative bandwidth at high frequency reached 27.5%. The dual-band antenna has the characteristics of simple structure and stable performance，and it has the application value for terahertz communications and wireless transmission systems．

参考文献

[1] Zheng Xin, Liu Chao．Recent development of THz technology and its application in radar and communication system (I) [J]. Journal of Microwaves, 2010, 26 (6):1-6.

[2] Syed W H, Fiorentio G, Cavallo D, et al. Design, fabrication, and measurements of a 0.3 THz on chip double slot antenna enhanced by artificial dielectrics [J]. IEEE Trans Terahertz Science & Technology, 2015, 5(2): 288-298.

[3] 杨卫, 耿友林. 基于光子晶体的太赫兹微带贴片天线的设计[J]．微波学报, 2012, 28 (s2)：376-379．(Yang Wei, Geng Youlin. THz rectangular patch microstrip antenna based on the photonic crystal. Journal of Microwaves, 2012,28(s2)：376-379)

[4] Zheng Xin, Liu Chao. Recent development of THz technology and its application in radar and communication system(Ⅱ)［J］. Journal of Microwaves, 2011, 27 (1):1-5.

[5] 王海锟,育堃,任树杰, 等. 基于双T型缝隙的新型太赫兹双频微带天线[J].光通信研究, 2017(3)：75-78.(Wang Haikun, Bai Yukun, Ren Shujie, et al. A novel terahertz dual-band patch antenna based on double-T-slots. Study on Optical Communications, 2017(3)：75-78)

[6] 游佰强, 周建华, 李伟文. 现代天线实用设计技术[M]. 厦门：厦门大学出版社，2016:95-97.(You Baiqiang, Zhou Jianhua, Li Weiwen. Modern antenna practical design technology. Xiamen：Xiamen University Press, 2016:95-97)

[7] Kiruthika R, Shanmuganantham T, Gupta R K. A novel dual band microstrip patch antenna with DGS for X-band applications[C]//International Conference on Computer. 2017:136-141.

[8] Arya K A, Patnaik A, Kartikeyan V M. Microstrip patch antenna with skew-F shaped DGS for dual band operation[J]. Progress in Electromagnetics Research M, 2011, 19: 147-160.

[9] Weng Lihong, Guo Yuchun, Shi Xiaowei, et al. An overview on defected ground structure[J]. Journal of Microwaves, 2008, 7: 173-189.

[10] Yang Lecheng, Shi Xuesun．Analysis of photonic crystal and multi-frequency terahertz microstrip patch antenna[J]．Physica B, 2013, 413:11-14.

[11] Feng Chunfang, Xu Liping. Study on photonic crystal microstrip antenna at 0.2 terahertz frequency [J]. Laser & Infrared, 2015, 45 (1):70-72.

[12] Thaukar A, Kaur A, Kumar R, et al. A parametric analysis of ground slotted patch antenna for X-band applications[C]//3rd Int Conference on Signal Processing and Integrated Networks.2016:549-552.

[13] 梁斌, 杨娜. 一种新型高增益微带天线[J]. 数字通信，2009，36 (5)：62-64. (Liang Bin, Yang Na. A new high gain microstrip antenna. Digital Communication, 2009, 36(5)：62-64)

董耘琪, 黄波, 赵欣悦, 刘玉宝, 阮久福. 基于缺陷接地结构的太赫兹双频微带天线[J]. 强激光与粒子束, 2018, 30(7): 073101. Dong Yunqi, Huang Bo, Zhao Xinyue, Liu Yubao, Ruan Jiufu. Terahertz dual-band microstrip antenna based on defected ground structure[J]. High Power Laser and Particle Beams, 2018, 30(7): 073101.

基于缺陷接地结构的太赫兹双频微带天线

关于本站 Cookie 的使用提示

全站搜索

基于缺陷接地结构的太赫兹双频微带天线

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索