Title :
Planar F-shaped monopole antenna with dual-band circular polarization for WLAN systems
Author :
Chong-Wei Liou ; Jui-Han Lu
Author_Institution :
Dept. of Electron. Commun. Eng., Nat. Kaohsiung Marine Univ., Kaohsiung, Taiwan
Abstract :
A novel planar dual-band monopole antenna with circular polarization (CP) operation is proposed. By appropriately introducing an inverted L-shaped strip-sleeve shorted at the ground plane, the proposed dual-band CP design can easily be achieved with the impedance bandwidth (RL ≥10 dB) of about 1932/339 MHz and the 3 dB axial-ratio (AR) bandwidth of about 250/360 MHz for 2.4/5.2 GHz wireless local area network (WLAN) applications. The measured peak gain and radiation efficiency are about 3.6/4.5 dBic and 97/65 % across the operating bands, respectively, with nearly bidirectional patterns in the XZ- and YZ-planes.
Keywords :
antenna radiation patterns; monopole antennas; multifrequency antennas; planar antennas; wireless LAN; WLAN applications; WLAN systems; bandwidth 1932 MHz; bandwidth 250 MHz; bandwidth 339 MHz; bandwidth 360 MHz; bidirectional patterns; dual-band CP design; dual-band circular polarization; frequency 2.4 GHz; frequency 5.2 GHz; ground plane; impedance bandwidth; inverted L-shaped strip-sleeve; planar F-shaped monopole antenna; wireless local area network; Antenna measurements; Bandwidth; Broadband antennas; Dual band; Wireless LAN; circular polarization; monopole; strip-sleeve;
Conference_Titel :
Electromagnetics (iWEM), 2014 IEEE International Workshop on
Conference_Location :
Sapporo
DOI :
10.1109/iWEM.2014.6963680
