光子学报 ›› 2018, Vol. 47 ›› Issue (7): 723003-0723003.doi: 10.3788/gzxb20184707.0723003

• 光学器件 • 上一篇    下一篇

方环结构的宽频可调超材料滤波器

赵亚娟1,2, 周必成1,2, 张晗1,2, 张婷1,2, 李宝毅1,2, 王东红1,2   

  1. 1. 中国电子科技集团公司第三十三研究所, 太原 030006;
    2. 电磁防护材料及技术山西省重点实验室, 太原 030006
  • 收稿日期:2018-01-28 出版日期:2018-07-25 发布日期:2018-04-13
  • 作者简介:赵亚娟(1989-),女,工程师,硕士,主要研究方向为电磁防护超材料应用技术.Email:798710363@qq.com
  • 基金资助:

    中国电子科技集团公司山西省重点实验室专项资金(No.ZX15ZS391),国家自然科学基金(No.U1710115),装备发展部共用技术(No.33KJ1707YY034A),装备预研重点实验室基金(No.33KJ1707JJ039B),四川省军用技术再研发项目(No.zyf-2017-70)资助

Broadband Tunable Filter Based on Square Loop Metamaterial

ZHAO Ya-juan1,2, ZHOU Bi-cheng1,2, ZHANG Han1,2, ZHANG Ting1,2, LI Bao-yi1,2, WANG Dong-hong1,2   

  1. 1. No.33 Research Institute of China Electronics Technology Group Corporation, Taiyuan 030006;
    2. Electromagnetic Protection Materials and Technology Key Laboratory of Shanxi Province, Taiyuan 030006
  • Received:2018-01-28 Online:2018-07-25 Published:2018-04-13
  • Contact: 2018-04-13
  • Supported by:

    The Key Laboratory Foundation of China Electronics Technology Group Corporation (No.ZX15ZS391),National Natural Science Foundation of China (No.U1710115),the Equipment Development Department Shares the Technology Fund (No.33KJ1707YY034A),the Key Laboratory Foundation of Equipment Prediction (No.33KJ1707JJ039B) and the Sichuan Special Funds of Civil Military Integration of China (No.zyf-2017-70)

摘要:

采用微控制电路加载技术控制超材料的等效介电常数和等效磁导率在不同时间的空间分布形式,实现空间滤波器中心频率的可调.设计了一种方环缝隙结构超材料滤波器,单元结构尺寸为18.5 mm×18.5 mm,通过在单元结构上加载变容二极管实现X波段内的连续可调.当变容二极管电容值从0.15 pF增大到0.70 pF时,仿真结果表明滤波器的中心频率从11.8 GHz逐渐减小到10.5 GHz,工作带宽为16.3%(10.2~12.0 GHz),通带内的回波损耗最小值为22 dB,插入损耗最大值为0.6 dB.测试结果表明滤波器的中心频率从11.7 GHz逐渐减小到10.3 GHz,工作带宽为17.2%(10.1~12.0 GHz),且通带内的回波损耗最小值为25 dB,插入损耗最大值为0.5 dB.

关键词: 超材料, 二极管, 宽频带, 滤波器, 频率可调

Abstract:

The loading technology of microcontroller circuit was used to change the spatial distribution of relative permittivity and relative permeability in different time, the metamaterials spatial filter can be tuned in frequency. A square loop metamaterial filter was designed with unit structure size of 18.5 mm×18.5 mm, which can be continuously tunable in the X band by loading varactor diode on the unit structure. When the varactor diode increases from 0.15 pF to 0.70 pF, the simulation results show that the center frequency of the filter is decreased from 11.8 GHz to 10.5 GHz, the bandwidth is 16.3% (10.2~12.0 GHz), and the return loss minimum is 22 dB, the insertion loss maximum is 0.6 dB. The measured results show that the center frequency of the filter is decreased from 11.7 GHz to 10.3 GHz, the bandwidth is 17.2% (10.1~12.0 GHz), and the return loss minimum is 25 dB, the insertion loss maximum is 0.5 dB.

Key words: Metamaterial, Broadband, Filter, Frequency tunable, Diode

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