Title :
A compact CPW-fed metamaterial antenna for high efficiency and wideband applications
Author :
Gupta, Ashish ; Sharma, Sameer Kumar ; Chaudhary, Raghvendra Kumar
Author_Institution :
Dept. of Electron. Eng., Indian Sch. of Mines, Dhanbad, India
fDate :
Feb. 27 2015-March 1 2015
Abstract :
In this paper a compact planar CPW-fed metamaterial antenna with closed ring resonator (CRR) has been proposed. It is observed that by employing CRR into the structure an extra band is found at 2.17 GHz (n = -1 mode) and therefore electrical size of the antenna is decreased significantly. CPW- feed is introduced to enhance the bandwidth and radiation efficiency of proposed antenna. This antenna is operated at 2.15 - 2.19 GHz and 3.2 - 5.25 GHz, at the center frequency 4.23 GHz. It achieves peak antenna gain of 2.97 dB and radiation efficiency upto 97%. In addition to that proposed antenna shows consistent radiation patterns throughout the bandwidth.
Keywords :
UHF antennas; antenna feeds; antenna radiation patterns; broadband antennas; coplanar waveguide components; metamaterial antennas; microwave antennas; closed ring resonator; compact CPW-fed metamaterial antenna; frequency 2.15 GHz to 2.19 GHz; frequency 3.2 GHz to 5.25 GHz; gain 2.97 dB; high efficiency antenna; radiation efficiency; wideband applications; Antenna radiation patterns; Bandwidth; Broadband antennas; Metamaterials; Resonant frequency; CRLH transmission lines; CRR (closed ring resonator); metamaterial antennas; resonant antenna; wideband antennas;
Conference_Titel :
Communications (NCC), 2015 Twenty First National Conference on
Conference_Location :
Mumbai
DOI :
10.1109/NCC.2015.7084825
