摘要We concentrate on describing the important influence and physical law of the split resonant ring (SRR) based left-handed materials on patch antennae. The finite-difference time-domain method, together with the finite element method is used to study the characteristics of patch antennae based on composite rectangular SRRs. A novel composite rectangular SRR system is formed by assembling the conventional patch antennae and SRRs, it is found that electromagnetic wave resonance occurs near f=3.15GHz, the equivalent permittivity and permeability are both negative, and the electromagnetic wave's tunnel effect and evanescent waves' enhancing effect are formed, which can improve the localization extent of electromagnetic wave's energy apparently. Such effects can improve the antenna's radiation gain and its matching condition. The phenomenon indicates that such composite rectangular patch antennae are promising in wireless communications such as mobile phones, satellite communication and aviation.
Abstract:We concentrate on describing the important influence and physical law of the split resonant ring (SRR) based left-handed materials on patch antennae. The finite-difference time-domain method, together with the finite element method is used to study the characteristics of patch antennae based on composite rectangular SRRs. A novel composite rectangular SRR system is formed by assembling the conventional patch antennae and SRRs, it is found that electromagnetic wave resonance occurs near f=3.15GHz, the equivalent permittivity and permeability are both negative, and the electromagnetic wave's tunnel effect and evanescent waves' enhancing effect are formed, which can improve the localization extent of electromagnetic wave's energy apparently. Such effects can improve the antenna's radiation gain and its matching condition. The phenomenon indicates that such composite rectangular patch antennae are promising in wireless communications such as mobile phones, satellite communication and aviation.
[1] Vesolago V G 1968 Sov. Phys. Usp. 10 509 [2] Smith D R and Kroll N 2000 Phys. Rev. Lett. 852933 [3] Smith D R, Vier D C, Kroll N and Schultz 2000 Appl.Phys. Lett. 77 2246 [4] Ziolkowski R W 2003 IEEETrans. Anten. Propagat. 51 1516 [5] Yee K S 1966 IEEE Trans. Antenn. Propagat. 14302 [6] Shadrivov I V, Sukhorukov A A and Kivshar Y S 2004 Phys. Rev. E 69 016617 [7] Qiu M and He S L 2000 Phys. Rev. B 61 12871 [8] Dong X T, Rao X S, Gan Y B, Guo B and Yin W Y 2004 IEEE Microwave Wireless Compon. Lett. 14 301 [9] Jiang T, Cui W Z, Ma W and Yuan Y 2009 Chin. Phys.Lett. 26 104101 [10] Zhang Z M and Fu C J 2002 Appl. Phys. Lett. 80 l097 [11] Pendry J B 2000 Phys. Rev. Lett. 85 3966