Title :
A novel compact dual-band monopole antenna using defected ground structure
Author :
Li Li ; Shu-hua Rao ; Bin Tang ; Ming-Fu Li
Author_Institution :
Dept. of Electron. Eng., Chengdu Aeronaut. Vocational & Tech. Coll., Chengdu, China
Abstract :
A novel compact microstrip-fed monopole antenna for wireless application is proposed. Defected ground structure (DGS) is used in this antenna, which has a rectangular patch with dual J-shaped strips, for achieving an additional resonant mode and good impedance matching. The proposed antenna has a small overall size of 20mm×28mm, and operates over the frequency ranges, 2.35-2.75 GHz and 3.3-3.83 GHz suitable for 2.4 GHz WLAN and 2.6/3.5GHz WiMAX communications. Omnidirectional radiation patterns with quite stable gains over the operating bands are obtained, which makes the antenna a good candidate for dual-band wireless communication applications.
Keywords :
WiMax; antenna feeds; antenna radiation patterns; impedance matching; microstrip antennas; monopole antennas; multifrequency antennas; omnidirectional antennas; wireless LAN; DGS; WLAN communications; WiMAX communications; compact dual-band monopole antenna; compact microstrip-fed monopole antenna; defected ground structure; dual J-shaped strips; dual-band wireless communication; frequency 2.35 GHz to 2.75 GHz; frequency 3.3 GHz to 3.83 GHz; impedance matching; omnidirectional radiation patterns; rectangular patch; resonant mode; Antenna radiation patterns; Impedance matching; Microstrip; Microstrip antennas; Resonant frequency; Wireless communication; DGS; Dual-band; monopole antenna;
Conference_Titel :
Microwave and Millimeter Wave Circuits and System Technology (MMWCST), 2013 International Workshop on
Conference_Location :
Chengdu
DOI :
10.1109/MMWCST.2013.6814645
