电子学报 ›› 2015, Vol. 43 ›› Issue (2): 230-235.DOI: 10.3969/j.issn.0372-2112.2015.02.004

• 学术论文 • 上一篇    下一篇

印刷带状偶极子天线与经典三维柱状偶极子天线的等效理论研究

常玉梅1, 车文荃1, 周雍2   

  1. 1. 南京理工大学通信工程系, 江苏南京 210094;
    2. 滑铁卢大学电子与计算机工程系, 加拿大滑铁卢 N2L3G1
  • 收稿日期:2013-07-08 修回日期:2014-05-27 出版日期:2015-02-25
    • 通讯作者:
    • 车文荃
    • 作者简介:
    • 常玉梅 女,1983年生于河北成安.博士研究生,2006年和2009年分别在江苏科技大学电子信息学院和南京理工大学通信工程系获理学学士和工学硕士学位.现为南京理工大学通信工程系博士研究生,从事微波吸收体、频率选择表面等方面的研究.
    • 基金资助:
    • 兵科院预研基金 (No.62201070811)

Equivalence of the Strip-Dipole Antenna Printed on Dielectric Substrate to the Classical Rod-Dipole Antenna in Air

CHANG Yu-mei1, CHE Wen-quan1, CHOW Yung2   

  1. 1. Department of Communication Engineering, Nanjing University of Science & Technology, Nanjing, Jiangsu 210094, China;
    2. Electrical and Computer Engineering, University of Waterloo, Waterloo, ON N2L3G1, Canada
  • Received:2013-07-08 Revised:2014-05-27 Online:2015-02-25 Published:2015-02-25

摘要:

相对于传统的柱状偶极子,印制偶极子天线更适合应用于现代通讯系统.本文通过引入边缘场效应,对传统的基于感应电动势法的柱状电偶极子辐射阻抗公式进行修正,并在此基础上将其推广至印制偶极子天线中.此外,本文还采用合成渐进法,基于物理概念,推导出平面偶极子天线的谐振频率及谐振频率处辐射电阻的两个计算机辅助计算公式.数值计算及验证表明,两个公式的精度均在2%以内,可以用于指导工程设计.

关键词: 印制偶极子天线, 辐射阻抗, 模糊电磁学, 合成渐进法, 矩量法

Abstract:

Dipole-antenna printed as strip on a dielectric substrate is more suitable for modern technology than the classical dipole in rod form.In this paper,an improved radiation impedance formula of rod-dipole in free space was proposed by considering the edge effects at two ends and the feeding point.Based on the improved formula and the equivalent conversion between rod-dipole and strip-dipole,thispaper derived a pair of simple and accurate formulas to convert the response of a strip-dipole on slab to that of an equivalent rod-dipole;the two formulas were obtained by using the Synthetic Asymptote (SA) method.The validity and the accuracy of the formula were verified,which is less than 2%,which means that thesetwo formulas can be quite useful for the guidance of practical engineering design.

Key words: printed dipole, radiation impedance, fuzzy EM, synthetic asymptote(SA), method of moment(MoM)

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