Title :
Compact dual-band antenna using inverted-L loop and inner rectangular loop for WLAN applications
Author :
Qu, L. ; Zhang, R. ; Kim, H.H. ; Kim, H.
Author_Institution :
Dept. of Electron. & Comput. Eng., Hayang Univ., Seoul, South Korea
Abstract :
A small loop antenna for WLAN applications is proposed, which is comprised of an inverted-L loop and an inner rectangular loop achieving dual-band resonances within a compact size of 4.5 mm × 6.5 mm. A series capacitor in the feeding loop is employed for impedance matching of both bands and a shunt capacitor for high band, respectively. The proposed compact antenna is able to achieve -10 dB impedance bandwidth of 120 and 1260 MHz and average radiation efficiency of 69 and 61% in the 2.4 GHz band and the 5 GHz band, respectively.
Keywords :
loop antennas; microwave antennas; multifrequency antennas; wireless LAN; WLAN applications; bandwidth 120 MHz; bandwidth 1260 MHz; compact dual-band antenna; dual-band resonances; frequency 2.4 GHz; frequency 5 GHz; impedance matching; inner rectangular loop; inverted-L loop; shunt capacitor; small loop antenna;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2015.2075