论文信息 - Electronically reconfigurable metamaterial for compact directive cavity antennas

Electronically reconfigurable metamaterial for compact directive cavity antennas

The modelling and characterisation of an electronically controllable metamaterial partially reflecting surface to a resonant cavity antenna near 8 GHz is considered. The metamaterial considered is composed of a composite phase varying metamaterial, by the insertion of active electronic components, and is proposed for the design of the reconfigurable Fabry-Perot cavity antenna. An adjustable resonance frequency between 7.9 and 8.2 GHz is obtained and a drastic enhancement in the directivity of the antenna is also observed for a cavity thickness as small as lambda/75.

[1] J. Vardaxoglou,et al. Artificial magnetic conductor surfaces and their application to low-profile high-gain planar antennas , 2005, IEEE Transactions on Antennas and Propagation.

[2] Jean-Michel Lourtioz,et al. All-metamaterial-based subwavelength cavities (λ/60) for ultrathin directive antennas , 2006 .

[3] Lei Zhou,et al. Directive emissions from subwavelength metamaterial-based cavities , 2005 .

[4] Abdelwaheb Ourir,et al. Phase-varying metamaterial for compact steerable directive antenna , 2007 .