Title :
Triple band patch antenna for Wibro/WLAN applications using a CRLH unit cell
Author :
Ha, Jaegeun ; Lee, Youngki ; Cho, Jaehoon
Author_Institution :
Dept. of Electron. & Comput. Eng., Hanyang Univ., Seoul, South Korea
Abstract :
A patch antenna with multiple resonance modes is presented. The proposed antenna is loaded with a composite right/left-handed (CRLH) unit cell which is composed of a gap capacitor in the patch and a complementary split-ring resonator (CSRR) slot on the ground plane. The CRLH unit cell provides a dual band operation at the zeroth- and the first-order resonances. The first-order resonance frequencies can be modified by changing the series capacitance while the zeroth-order resonance frequency is determined by the equivalent inductance and capacitance values of the CSRR slot. Additional resonance at 5.8 GHz WLAN band is obtained by inserting a shunt stub of λ/2. The proposed antenna provides triple-band resonances at Wibro, 5.2 GHz WLAN, and 5.8 GHz WLAN bands. Moreover, the electrical size of the patch is only 0.05 λ0 × 0.14 λ0.
Keywords :
capacitance; capacitors; metamaterials; microstrip antennas; multifrequency antennas; resonance; resonators; wireless LAN; CRLH unit cell; CSRR slot; Wibro-WLAN applications; capacitance values; complementary split-ring resonator slot; composite right-left-handed unit cell; dual band operation; equivalent inductance; first-order resonance frequencies; frequency 5.2 GHz; frequency 5.8 GHz; gap capacitor; ground plane; multiple resonance modes; series capacitance; shunt stub; triple band patch antenna; triple-band resonance; zeroth-order resonance frequency; Antenna measurements; Antenna radiation patterns; Dual band; Resonant frequency; Slot antennas; Wireless LAN; Metamaterials; multifrequency antennas; patch antennas;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2011 Asia-Pacific
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4577-2034-5
