Title :
Low profile highly directive antennas using EBG superstrates and metamaterial ground planes
Author :
Wang, S. ; Feresidis, A.P. ; Goussetis, G. ; Vardaxoglou, J.C.
Author_Institution :
Dept. of Electron. & Electr. Eng., Loughborough Univ. of Technol., UK
Abstract :
Metamaterial ground planes (MGP) that exhibit negative reflection phase values are applied for the first time in the planar resonant cavity antenna configuration. The negative reflection phase values alter the resonance condition of the cavity and significantly reduce the antenna profile to subwavelength values. A simple dipole positioned between the PRS and the ground is utilized as the excitation. Full wave 3D simulations of finite size antennas are carried out in order to accurately study the effect of the MGP on the antenna directivity. A thin planar antenna is fabricated and the measured performance is presented.
Keywords :
antenna radiation patterns; cavity resonators; dipole antennas; directive antennas; electromagnetic wave reflection; metamaterials; photonic band gap; EBG superstrates; MGP; antenna directivity; dipole; full wave 3D simulations; low profile highly directive antennas; metamaterial ground planes; negative reflection phase values; planar resonant cavity antenna; Dielectrics; Dipole antennas; Directive antennas; Magnetic materials; Magnetic resonance; Metamaterials; Periodic structures; Planar arrays; Reflection; Reflector antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1552816
