Title :
Tree-like metamaterial microstrip antenna for gain enhancement
Author :
Liang Xu ; Guo Liu ; Haiguang Zhang ; Zhensen Wu
Author_Institution :
Inst. of Radio Wave Propagation, Xidian Univ., Xi´an, China
Abstract :
A novel high-gain patch antenna using tree-like fractal metamaterial structure has been designed. Simulated results show that the tree-like metamaterial structure has the property of the negative permeability. The proposed fractal antenna was constructed by changing the substrate of traditional patch antenna with the tree-like structure. The measured impedance bandwidth of the antenna is about 7.2%. The fractal antenna gain was enhanced by 1.8dB comparing with the conventional microstrip antenna, and the 3dB beamwidth of the E-plane was reduced by 16.2°. The tested results are in good agreement with that of the simulation.
Keywords :
fractal antennas; metamaterial antennas; microstrip antennas; fractal antenna; gain enhancement; impedance bandwidth; negative permeability; patch antenna; tree like fractal metamaterial structure; tree like metamaterial microstrip antenna; Antenna measurements; Fractals; Metamaterials; Microstrip; Microstrip antennas; Tree-like structure; fractal metamaterial; high gain; microstrip antenna;
Conference_Titel :
Microwave and Millimeter Wave Circuits and System Technology (MMWCST), 2013 International Workshop on
Conference_Location :
Chengdu
DOI :
10.1109/MMWCST.2013.6814566
