Title :
Suppression of spurious radiations of patch antenna using split ring resonators (SRRs)
Author :
Lee, Jae-Gon ; Lee, Jeong-Hae
Author_Institution :
Dept. of Radio Sci. & Commun. Eng., Hongik Univ., Seoul, South Korea
Abstract :
Spurious radiations of a patch antenna have been suppressed by the band-stop characteristic of split ring resonators (SRRs). The SRRs are located near the feed line of the upper substrate to couple the perpendicular magnetic field to the SRRs. These types of SRRs can be characterized with negative permeability and positive permittivity near the resonant frequency, so that the wave cannot propagate. Six sets of SRRs have been used to eliminate the first and second spurious radiations of a patch antenna.
Keywords :
antenna feeds; antenna radiation patterns; magnetic fields; magnetic permeability; microstrip antennas; permittivity; resonators; 6 to 11.5 GHz; band-stop characteristic; far-field pattern; feed line; negative permeability; patch antenna; perpendicular magnetic field; positive permittivity; resonant frequency; split ring resonators; spurious radiation suppression; Band pass filters; Conducting materials; Conductors; Magnetic fields; Microstrip; Optical ring resonators; Patch antennas; Periodic structures; Permeability; Resonant frequency;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1551985
