Title :
A high gain omnidirectional antenna using metamaterial rods
Author :
Fhafhiem, N. ; Krachodnok, Piyaporn
Author_Institution :
Sch. of Telecommun. Eng., Suranaree Univ. of Technol., Nakhonratchasima, Thailand
Abstract :
A metamaterial rod as a superstrate consisting of a periodically cylindrical rod is proposed for gain enhancement of omnidirectional microstrip patch antenna. The metamaterial rod exhibits near zero permeability that it reflects partially wave. This designed technique could be confirmed by a measurement result from prototype antenna that agrees with simulation results. The results indicate that the metamaterial rod can also enhance the radiation characteristics and efficiency, the proposed antenna generates an omnidirectional pattern in the azimuthal plane with the maximum gain of 19.47 dBi. The frequency of a high gain omnidirectional antenna using metamaterial rods is designed at 920 MHz for prepaid mobile application.
Keywords :
antenna radiation patterns; metamaterial antennas; microstrip antennas; mobile radio; omnidirectional antennas; azimuthal plane; frequency 920 MHz; gain enhancement; high gain omnidirectional antenna; metamaterial rods; near zero permeability; omnidirectional microstrip patch antenna; omnidirectional pattern; periodically cylindrical rod; prepaid mobile application; radiation characteristics; radiation efficiency; Aluminum; Antenna measurements; Antenna radiation patterns; Metamaterials; Microstrip; Microstrip antennas; Patch antennas; cylindrical patch microstrip antenna; high gain; metamaterial; omni-directional radiation pattern;
Conference_Titel :
Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2014 11th International Conference on
Conference_Location :
Nakhon Ratchasima
DOI :
10.1109/ECTICon.2014.6839781
