Title :
A compact tri-band monopole antenna for WLAN and WiMAX applications
Author :
Guorong Zou ; Linyan Guo ; Helin Yang
Author_Institution :
Coll. of Phys. Sci. & Technol., Central China Normal Univ., Wuhan, China
Abstract :
A compact tri-band planar monopole antenna is proposed in this paper that employs reactive loading and a defected ground plane structure. This proposed antenna operates in two modes. The first resonance exhibits a dipolar mode over the lower WiFi band of 2.40- 2.485 GHz and the upper WiFi band of 5.15 -5.70 GHz. The second resonance has a monopolar mode over the WiMAX band at 3.30-3.70 GHz. Full-wave analysis shows that the currents of these two modes are orthogonal to each other, resulting in orthogonal radiation patterns in their far field. The defected ground, formed by appropriately cutting a spiral-shaped slot out of one of the CPW (Coplanar Waveguide) ground planes, leads to the second resonance.
Keywords :
WiMax; antenna radiation patterns; coplanar waveguides; defected ground structures; dipole antennas; monopole antennas; multifrequency antennas; wireless LAN; CPW ground planes; WLAN application; Wi-Fi band; WiMAX application; WiMAX band; compact triband planar monopole antenna; coplanar waveguide; defected ground plane structure; dipolar mode; far field; frequency 2.40 GHz to 2.485 GHz; frequency 3.30 GHz to 3.70 GHz; frequency 5.15 GHz to 5.70 GHz; full-wave analysis; monopolar mode; orthogonal radiation patterns; reactive loading; spiral-shaped slot; Antennas; Coplanar waveguides; Copper;
Conference_Titel :
Antennas & Propagation (ISAP), 2013 Proceedings of the International Symposium on
Conference_Location :
Nanjing
Print_ISBN :
978-7-5641-4279-7
