Title :
Effects of a smaller unit cell planar EBG structure on the mutual coupling of a printed dipole array
Author :
Abedin, M.F. ; Ali, M.
Author_Institution :
Dept. of Electr. Eng., Univ. of South Carolina, Columbia, SC, USA
fDate :
6/27/1905 12:00:00 AM
Abstract :
A new smaller unit-cell planar electromagnetic bandgap (EBG) structure is proposed on low dielectric constant low-cost substrate (TMM: εr=4.5,thickness=25 mils) that has a stopband frequency at around 4 GHz. The proposed structure when placed in between a two-element printed dipole array results in over 13-dB reduction in mutual coupling and a significant improvement in antenna return loss bandwidth and gain pattern.
Keywords :
antenna radiation patterns; dipole antenna arrays; microstrip antenna arrays; permittivity; photonic band gap; antenna return loss bandwidth; dielectric constant; gain pattern; mutual coupling; planar electromagnetic bandgap structure; printed dipole array; smaller unit cell planar EBG structure; stopband frequency; substrate; Antenna arrays; Dielectric constant; Dielectric substrates; Dipole antennas; Frequency; Inductance; Metamaterials; Mutual coupling; Periodic structures; Surface waves; Antenna array; mutual coupling; planar electromagnetic bandgap (EBG); surface wave;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2005.854004
