Title :
Technique for Reducing the Power Supply in Reconfigurable Cylindrical Electromagnetic Bandgap Structures
Author :
Boutayeb, Halim ; Denidni, Tayeb A.
Author_Institution :
INRS-EMT, Montreal, Que.
Abstract :
In this letter, a new design of cylindrical electromagnetic bandgap (CEBG) structures is proposed in order to reduce the power supply used to control active elements in EBG-based reconfigurable antennas. The proposed configuration uses structures of discontinuous wires with defects consisting of continuous wires. To examine its performances, numerical simulations were carried out using a finite-difference time-domain (FDTD) code, for the structure without active elements. The obtained results show that the new configuration allows to obtain a directive beam in the pass-band of the all continuous-wires structure. This work has potential application for designing an antenna with a directive pattern able to turn over 360deg range
Keywords :
antenna radiation patterns; directive antennas; finite difference time-domain analysis; photonic band gap; CEBG structures; EBG-based reconfigurable antennas; FDTD code; continuous-wires structure; directive beam; directive pattern antenna; finite-difference time-domain code; reconfigurable cylindrical electromagnetic bandgap structures; Adaptive arrays; Antenna radiation patterns; Directive antennas; Finite difference methods; Metamaterials; Periodic structures; Phased arrays; Power supplies; Time domain analysis; Wires; Cylindrical structures; periodic structures; reconfigurable materials;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2006.883951
