DUAL-BAND METAMATERIAL-INSPIRED ANTENNA FOR MOBILE APPLICATIONS

In this letter, a metamaterial (MTM) inspired antenna is designed to operate at DCS, GSM1800, WCDMA, and Bluetooth and hence shows good potential to be used in mobile applications. The proposed antenna shows n characteristics with first band (1.61-1.84 GHz) resonant at 1.72 GHz and second (2.08-2.5 GHz) at 2.17 GHz with substrate dimensions of 0.29(o) x 0.29(o) x 0.01(o). Percentage input impedance bandwidth (S-11<-6 dB) is 13.4% for first and 19.4% for second band, respectively. The proposed antenna shows monopole-like radiation pattern in xz-plane while dipolar-type in yz-plane at both frequencies of operation, respectively. The measured gain of proposed antenna is 1.8 and 1.6 dB at 1.72 and 2.17 GHz with radiation efficiency of 97.2 and 99.1%, respectively. (c) 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:1444-1447, 2015