Title :
Metamaterial-based antenna with triangular slotted ground for efficiency improvement
Author :
Pyo, Soonjae ; Baik, J.-W. ; Cho, S.-H. ; Kim, Young-Sik
Author_Institution :
Dept. of Radio Commun. & Eng., Korea Univ., Seoul
Abstract :
A metamaterial-based antenna is presented that consists of periodic electromagnetic bandgap (EBG) cells on the top plane and triangular slots on the bottom ground plane. This proposed microstrip patch antenna can yield left-handed, zeroth-order and right-handed metamaterial resonances owing to the asymmetrical periodic structure of honeycomb-like EBG. Experimentally, the efficiency of this antenna is improved by about 14.7% at the zeroth-order resonant mode as the triangular slot length on the ground plane is increased from 0 to 5.5%mm.
Keywords :
metamaterials; microstrip antennas; microwave antennas; photonic band gap; slot antennas; asymmetrical periodic structure; honeycomb-like EBG; left-handed metamaterial; metamaterial-based antenna; microstrip patch antenna; periodic electromagnetic bandgap cell; right-handed metamaterial; top plane; triangular slots; triangular slotted ground; zeroth-order metamaterial;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20092424
