中国物理B ›› 2006, Vol. 15 ›› Issue (6): 1154-1160.doi: 10.1088/1009-1963/15/6/006

• GENERAL • 上一篇    下一篇

Subwavelength rectangular cavity partially filled with left-handed materials

姜田, 陈艳, 冯一军   

  1. Department of Electronic Science and Engineering, Nanjing University,Nanjing 210093, China
  • 收稿日期:2006-01-09 修回日期:2006-01-20 出版日期:2006-06-20 发布日期:2006-06-20
  • 基金资助:
    Project supported by the State Key Development Program for Basic Research of China (Grant No 2004CB719800), the Doctoral Program Foundation of Institute of Higher Education of China (Grant No 20030284024).

Subwavelength rectangular cavity partially filled with left-handed materials

Jiang Tian (姜田), Chen Yan (陈艳), Feng Yi-Jun (冯一军)   

  1. Department of Electronic Science and Engineering, Nanjing University,Nanjing 210093, China
  • Received:2006-01-09 Revised:2006-01-20 Online:2006-06-20 Published:2006-06-20
  • Supported by:
    Project supported by the State Key Development Program for Basic Research of China (Grant No 2004CB719800), the Doctoral Program Foundation of Institute of Higher Education of China (Grant No 20030284024).

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摘要： In this paper, we present the electromagnetic analysis of a rectangular cavity partially filled with a left-handed material slab. Our theoretical investigation shows that there exist novel resonant modes in the cavity, and such a cavity becomes a subwavelength cavity. The eigenvalue equation of the cavity is derived and the resonant frequencies of the novel modes are calculated by using numerical simulation. We also discuss the stability of the novel resonant modes and show the best condition under which a useful rectangular cavity of subwavelength dimensions with tolerable stability is obtained.

Abstract: In this paper, we present the electromagnetic analysis of a rectangular cavity partially filled with a left-handed material slab. Our theoretical investigation shows that there exist novel resonant modes in the cavity, and such a cavity becomes a subwavelength cavity. The eigenvalue equation of the cavity is derived and the resonant frequencies of the novel modes are calculated by using numerical simulation. We also discuss the stability of the novel resonant modes and show the best condition under which a useful rectangular cavity of subwavelength dimensions with tolerable stability is obtained.

Key words: left-handed material, rectangular cavity, subwavelength resonator, stability

中图分类号:  (Electromagnetic wave propagation; radiowave propagation)

  • 41.20.Jb
02.60.Cb (Numerical simulation; solution of equations)